Key Factors to Consider in the Street Lighting Design

Key Factors to Consider in the Street Lighting Design

Introduction

The main purpose of street lighting is to provide an appropriate lighting level for motorists to ensure safety in driving or for pedestrians to ensure safety while walking. In cities, street lighting plays an additional role in creating a more attractive and safer environment. The ability of city street lighting to illuminate objects is affected by the quality of the light and other physical factors such as traffic levels and road surfaces. A good street lighting system will ensure the visual detection of objects at greater distances.

For more and more outdoor LED lighting projects, ZGSM’s LED street light developers have launched street lighting designs to provide customers with more comprehensive technical support. The lighting effect and overall quantity can better communicate with the end customer and calculate the project cost more accurately. At the same time, it also displays detailed street lighting data for customers, which can meet the different lighting requirements of customers. This article will describe the various lighting factors that we should consider when designing an effective lighting system, as well as the minimum standards that need to be met to ensure safe driving conditions.

Photos of Roading lighting with Series H LED Street Light

Main factors which we should pay attention to?

Street lighting evaluation indicators include average road luminance Lav (road average illuminance, road minimum illuminance), brightness uniformity, longitudinal uniformity, glare, environmental ratio SR, Color Rendering Index, and visual inducement. So these are the points we need to pay attention to when doing street lighting design.

Average Road Luminance Lav in Cd/m

Road Luminance is a measure of the visibility of the road. It is the most important factor affecting whether the obstacle can be seen, and it is based on the principle of illuminating the road enough to see the outline of the obstacle. Brightness (Road Luminance) depends on the light distribution of the luminaire, the lumen output of the luminaire, the installation design of the street lighting, and the reflective properties of the road surface. The higher the brightness level, the better the lighting effect. According to lighting-class standards, Lav is in the range between 0.3 and 2.0 Cd/m2.

Uniformity

Uniformity is an index to measure the uniformity of light distribution on the road, which can be expressed as overall uniformity (U0) and longitudinal uniformity (UI).

Street lighting facilities must determine the allowable difference between the minimum brightness and the average brightness on the road, that is, the overall brightness uniformity, which is defined as the ratio of the minimum brightness to the average brightness on the road. Good overall uniformity ensures that all points and objects on the road are sufficiently illuminated for the driver to see. The Uo value accepted by the road lighting industry is 0.40.

Uniformity (U1)

On the other hand, for comfort, the difference in brightness between the brightest and darkest areas along the centerline of the lane, ie, longitudinal uniformity, should be limited. Good longitudinal uniformity reduces the pattern of high and low brightness on the road (i.e. the zebra effect), thus ensuring comfortable driving conditions. It is applicable to long and continuous roads.

uniformity (U0)

Glare

Glare is the blinding sensation that occurs when the brightness of light exceeds the level of adaptation of the human eye to light. It can cause discomfort and reduce road visibility. It is measured in Threshold Increment (TI), which is the percentage increase in brightness required to compensate for the effects of glare (ie, to make the road equally visible without glare). The industry standard for the glare in street lighting is between 10% and 20%.

Road Average Illuminance, Road Minimum Illuminance, and Vertical Illuminance

The average value of the illuminance of each point is measured or calculated at the preset points on the road according to the relevant regulations of CIE. The lighting requirements of motor vehicle lanes are generally based on brightness, but the lighting requirements of sidewalks are mainly based on road illuminance. It depends on the light distribution of the lamps, the lumen output of the lamps, and the installation design of the street lighting, but it has little to do with the reflection characteristics of the road. Illuminance uniformity UE (Lmin/Lav) also needs attention in sidewalk lighting, it is the ratio of the minimum illuminance to the average illuminance on the road. To provide for uniformity the actual value of the maintained average illuminance may not exceed 1.5 times the value indicated for the class.

Surround ratio (SR)

The ratio of the average horizontal illuminance in the 5 meters wide area outside the roadway to the average horizontal illuminance on the adjacent 5 meters wide roadway. Road lighting should not only illuminate the road, but also the adjacent area so that motorists can see surrounding objects and anticipate possible road obstacles (eg, pedestrians about to step onto the road). SR is the visibility of the road perimeter relative to the main road itself. According to lighting industry standards, the SR should be at least 0.50, as this is ideal and sufficient for proper eye accommodation.

Surround ratio (SR)

Color Rendering Index

The color rendering index measures the ability of artificial light sources to display or reproduce the color of the road or objects on the road relative to natural light sources. The natural light source (sun) has a CRI of 100. The higher the index, the better the visibility. It’s recommended CRI ≥ 70 for all types of road lighting classes.

Visual Inducement

Through the guidance auxiliary facilities of the road, such as the centerline of the road, the curb, the road sign, the emergency road barrier, etc., the driver can make the driver know his position and the direction in front of the road.

Which standard your projects shall meet?

They have different standards for vehicle lanes and sidewalks. We have listed two tables below for you to quickly check relative standards. The tables below are for motorways and sidewalks, respectively. As you can see, it includes Lav (Eav, Emin), Uo, UI, Ti, and SR requirements. Of course, in addition to lighting class M and class P, there are other lighting classes. For example, lighting-class C is for conflict areas. Normally projects or tenders have a requirement on the protection class of lamps. They will ask for either Class I or Class II for AC input LED street lights. For what is Class I or Class II, you can read our related article “Class I vs Class II vs Class III, or Class 1 vs Class 2“

Street lighting standard table

Lighting class standard table for motorways

Lighting class Dry Wet TI in % SR Lav in cd/m2 Uo UI Uo M1 2.0 0.40 0.70 0.15 10 0.5 M2 1.5 0.40 0.70 0.15 10 0.5 M3 1.0 0.40 0.60 0.15 10 0.5 M4 0.75 0.40 0.60 0.15 15 0.5 M5 0.50 0.35 0.40 0.15 15 0.5 M6 0.30 0.35 0.40 0.15 20 0.5

Lighting class standard table for pedestrians

Lighting class Average horizontal illuminance Eav in lx Minimum horizontal illuminance Emin in lx Ti in % Additional requirement if facial recognition is necessary Minimum vertical illuminance Ev,min in lx Minimum semi- cylindrical illuminance Esc,min in lx P1 15 3.0 20 5.0 3.0 P2 10 2.0 25 3.0 2.0 P3 7.5 1.5 25 2.5 1.5 P4 5.0 1.0 30 1.5 1.0 P5 3.0 0.6 30 1.0 0.6 P6 2.0 0.4 35 0.6 0.4

What lighting-class do you need to meet for your project? If you’re still hesitating, we think you can find your answer in two ways.

Requirement from tender

As a municipal project, road lighting generally has technical specifications for their lighting projects. For example, the following table is the lighting performance that our project in Kuwait requires. It gives the width of the road, the height of the pole, the length of the arm, and the tilt angle, through which we can confirm the selection of LED street lights, including wattage, lens, and pole spacing.

Generally speaking, the smaller the wattage, the larger the distance between the lamps (the fewer lamps required for the project), and the better it can meet the requirements of the project party. Of course, the price of lamps is also a factor that the project party often considers. For details, please refer to our article about street light cost.

Lighting levels and uniformities

Requirement as per lighting-class selection table

In addition, to get the requirements from the tender, you can also decide which lighting-class your road should conform to by using the factors in the selection table below. For lighting-class M, these parameters include speed, traffic volume, traffic composition, separation of carriageways, junction density, parked vehicles, ambient luminance, and navigational task. For lighting-class P, these parameters include design speed, use intensity, traffic composition, parked vehicles, ambient luminance, and facial recognition.

Because there are so many related factors, here we only discuss design speed. For example, for design speed, there are five options given across the different lighting classes M and P. The option ‘very high’ (e.g. more than 100 km/h) would apply to motorways (lighting classes M). The option ‘high’ (e.g. between 70 km/h and 100 km/h) would apply primarily to inter-urban single and dual carriageways, but also to urban principal roads between primary destinations (lighting classes M). In urban areas speed limits are 50 km/h on average, ranging from 30 km/h to 70 km/h (e.g. on major distributor roads). The option ‘moderate’ is related to this speed (lighting classes M). In residential areas with or without geometric measures for traffic calming in many cases, the speed limit is set to 30 km/h or less. Here the option ‘low’ would be the appropriate choice (lighting classes P). For areas where pedestrians are considered as main users the speed option ‘very low’, i.e. walking speed, often limited between 5 km/h and 7 km/h, here ‘very low’ should be applied (lighting classes P). If you know how to choose other factors, you can contact us or refer to the EN13201 standard or contact us to learn more.

Parameter Options Weighting Value WV selected Design Speed Very high 2 1 High 1 Moderate -1 Low -2 Traffic volume High 1 0 Moderate 0 Low -1 Traffic composition Mixed with high percentage of non-motorized 2 1 Mixed 1 Motorized only 0 Separation of carriageway No 1 1 Yes 0 Junction density High 1 0 Moderate 0 Parked vehicles Present 1 0 Not present 0 Ambient luminance High 1 0 Moderate 0 Low -1 Navigational task Very difficult 2 1 Difficult 1 Easy 0 Sum of Weighting Values SWV=4

The number of lighting-class M = 6-SWV= M2, then you can choose lighting-class M2 as the requirement for your project.

Parameter Options Weighting Value WV selected Design Speed Low 1 0 Very low (walking speed) 0 Use intensity Busy 1 0 Normal 0 Quiet -1 Traffic composition Pedestrians, cyclists and motorized traffic 2 1 Pedestrians and motorized traffic 1 Pedestrians and cyclists only 1 Pedestrians only 0 Cyclists only 0 Parked vehicles Present 1 1 Not present 0 Ambient luminance High 1 0 Moderate 0 Low -1 Facial recognition Necessary Additional requirements 0 Not necessary No additional requirements Additional requirements SWV= 2

The number of lighting-class M = 6-SWV= P4, then you can choose lighting-class P4 as the requirement for your project.

Others which we should pay attention to

Physical factors can either enhance or detract from the performance of the roadway lights, so it is imperative to give these factors ample consideration when creating a lighting system.  

Light poles should be strong enough to carry and support light fixtures and should be the appropriate height and spacing for optimal lighting. When planning the street lighting layout, structures that obstruct traffic, such as trees, should also be considered. The following table shows several common road conditions, as well as the corresponding pole height, pole spacing, and boom.

Reference standards of the layout of poles

No Luminaire Category Bracket Poles Arrangement and Clearance Carriageway     Type(layout of poles) Outreach (m) Clearance from the road (m) Mounting Height (m) Spacing (m) Median Width (m) Type lanes Width (m) 1 A1 Single sided 0.5 Single Sided, 1 5 24 – Single 2 6 2 A2 Single sided 1.5 Single Sided, 2.75 8 30 – 35 – Single 2 6 3 A2 Double T-Shape (poles on median) 1.5 Central Verge Position (symmetrically) 8 30 – 35 2 Double 1 7 each 4 A3 Single sided 0.5-1.5 Single Sided, 2.75 10 35 – 40 – Single 2 7.5 5 A3 Double T-Shape (poles on median) 0.5-1.5 Central Verge Position (symmetrically) 10 35 – 40 4 Double 2 7.5 each 6 A3 Double row, opposing Pole 0.5-1.5 Double row, opposing Pole, 1 10 35-40 1-2 Single 3 10.5 each 7 A4 Single sided 0.5 Single Sided, 2.75 12 40 – 45 – Single 2 7.5 8 A4 Double T-Shape (poles on median) 0.5 Central Verge Position (symmetrically) 12 40 – 45 6 Double 2 7.5 each 9 A4 Single sided 0.5 Single Sided, 2.75 14 45 – 50 – Single 2 7.5 10 A4 Double U-Shape (poles on median) 0.5 Central Verge Position (symmetrically) 14 45 – 50 – Double 3 –

Regarding the layout of the poles, please check the below diagram.

Pole Layout

Smart control

Smart control systems are infrastructure communication systems that allow instantaneous control of lighting systems. They can automatically adjust lighting levels according to their surroundings. Studies have shown that LED street lights combined with intelligent street lighting control systems can maximize the lifespan of lamps, minimize maintenance costs, and save up to 80% in energy. Of course, the adjusted brightness also needs to meet the corresponding lighting requirements. For example, for a road that needs to meet the M3 requirements, when there are few vehicles at midnight, the illuminance requirements may be reduced by M5. Refer to the table of Lighting Class M, then the brightness of our lamps can be adjusted to 50% of the initial brightness. This not only saves power consumption but also meets the corresponding lighting needs.

Street lighting design reference

When we have clear the points that need to be paid attention to in road lighting, let’s go back to how to plan our project to meet the requirements of the project, we think Dialux is a good means. Assume that a two-way six-lane road lighting simulation needs to be made, the object lane is separated by a middle partition island, and high-pole street lights are arranged on both sides of the road. Motorways and pedestrian paths are divided by lawns. Set up street lighting on the lawn to illuminate motor vehicle roads and sidewalks.

Through the table, we choose the scheme of installing street lights on the opposite side of A3, setting the width of the two-way eight lanes to be 28 meters in total, and the width of the middle separation island to be 1 meter. The width of the lawn is 1 meter, a total of 2 meters. The width of the pedestrian path is 2 meters, a total of 4 meters. The motor vehicle lane is 3.5 meters, a total of 21 meters. The layout of the road and street lights is as below.

Layout

And we used our Rifle series 100W street light with 15500lm and T2M53007 lens. Meanwhile, the space is 40m and the lighting simulation calculation results are as follows

Calculation Field List Standard: EN 13201 Valuation Field Roadway (All lighting performance requirements are met.) Selected Lighting Class: ME3a Lav [cd/m²] U0 Ul TI [%] SR Calculated values: 1.16 0.58 0.75 14 0.82 Required values according to class: ≥ 1.00 ≥ 0.40 ≥ 0.70 ≤ 15 ≥ 0.50 Fulfilled/Not fulfilled: √ √ √ √ √

Street lighting project reference

ZGSM has 17 years of experience in street lamp production. Our company’s products have served more than 3,000 customers around the world. There are countless street lighting projects, large and small. We are proud to share our successful road lighting project with you here. The image below is an urban street lighting project for our Croatian client. The project was completed in 2015, and the customer chose our classic H series modular street light with an installation height of 6M to replace the original 250W metal halide light after street lighting design. At first, the customer thought that at least 100W LED lamps were needed to meet their lighting requirements. Through communication with customers, we confirmed the corresponding requirements and road conditions. Finally, with the help of the Dialux lighting simulation, we replaced the original lamps with 65W H series street lamps. The lighting effect after installation is very good, the measured ground lux value is 30% higher than that before the renovation, and the energy-saving rate reaches 70%. ZGSM is very happy that the customer’s needs have been perfectly solved, and thanks to the street lighting design team of ZGSM for giving reasonable suggestions.

Summary

The main function of public lighting is to ensure the safety of road users and enhance urban safety. Public lighting installations should be designed to provide appropriate lighting in an energy-efficient and environmentally friendly manner. This article introduces the important concerns of road simulation, different lighting levels, and how to choose the appropriate level for your project. I hope these will give you a certain understanding of road lighting simulation. If you have a project in hand, you might as well start a lighting simulation now and choose the right LED street light for your project. Of course, if you need our help, we are also very happy to provide and share the corresponding knowledge with you. Let’s get in touch.

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People also ask

The distance between two light poles should be around 2.5–3 times the pole’s height. There should be shorter light poles built at closer spacing. Density, transit speed, and the kind of light source along a corridor will also affect the optimal spacing and height.

Typically, the height of street poles ranges from 9 to 14 feet. Ideally, the street light pole should give enough illumination without undue glare. The purpose of street lights is to illuminate the path for walkers, cyclists, and vehicles, notwithstanding its role in crime prevention.

A white light with excellent color rendering is necessary. The horizontal illumination inside the actual crossing must be at least 80 lux. In addition, there must be vertical illumination of at least 10 lux in the waiting areas and 20 lux in each lane leading up to the crossing.

Author introduction

Author

Hello Customers,

My name is Taylor Gong, I’m the product manager of ZGSM Tech. I have been in the LED lights industry for more than 13 years. Good at lighting design, street light system configuration, and bidding technology support. Feel free to contact us. I’m happy to provide you with the best service and products.

Email: [email protected] | WhatsApp: +8615068758483

Different types of street lights and their applications

Different types of street lights and their applications

Introduction

The main component of the city lighting project is street lighting. The lighting of street lights is especially significant at night. Currently, traditional street lighting are being phased out in favor of LED street lights. Because of its great luminous efficiency, long life, low energy consumption, and ease of installation, led street lights are widely employed.

Different types of street lights can be applied in a variety of situations depending on their appearance, installation method, wattage, and beam angle. These applications include main streets, residential streets, road intersections, plazas, parks, outdoor industrial and logistics areas, etc. Nowadays, LED street lights are becoming more and more fashionable, and high energy-saving LED lamps are designed to replace traditional HPS and MH lamps. We believe that when designing a successful street light, you need to pay attention to the aesthetics, wattage, light efficiency, light distribution, street lighting certification and CCT/CRI, etc.

When your street light is perfect in several aspects, it is in the competition of the project which it can win, and the different installation methods make its application range very wide. In recent years, with the maturity of LED technology, photocell and sensors are increasingly applied to LED street lights to achieve energy-saving and semi-intelligent functions. LED street lights with smart controllers can make your roads, squares and parks very advanced, and it will also make your city very modern.

Street light applications

Different applications of types of street lights

Both rural and urban areas have a variety of streets, such as primary streets, secondary streets, etc. Different street lamp situations require different types of street lights, different wattages, and different light distributions. As technology advances, LED street lights are a cost-effective and sustainable option for roads and paths in cities, towns, and rural areas.

The expressway is the road connecting the city and the city, and the road connecting the city and the countryside. In this case, there will be no non-motorized lanes for motor vehicles and pedestrians. In addition, the road surface of the expressway is very smooth, there are no obvious potholes, the road condition is maintained well, and the safety factor is high. Therefore, most highways do not need to install street lights. At the same time, considering that the cost is too high, it is not suitable to install street lights on the highway.

In the following special cases, such as high-speed entrances and exits, bridges on high-speed roads, roundabouts, etc., high-power street lamps can be used to provide necessary lighting for drivers to drive safely. For roundabouts, we probably need to install flood lights instead of street lights. And the installation height of flood lights can reach 12-15m or higher.

Intersection lighting

These Types of street lights are often used at road and street intersections so that drivers must make quick decisions when they spot potential hazards. In this case, LED street lights should be placed at intervals to keep the light even and eliminate the driver’s eyestrain. When necessary, high mast lights can be set up at intersections to provide necessary lighting for drivers and pedestrians.

Additional resources:
The Future of Parking Lot Lighting: Exploring LED Canopy Light Innovations
The Ultimate Guide to Choosing LED Spotlights
The lighting in your home could be affecting your mood
What is the correct lighting for an office?

Square lighting

Squares are an important part of people’s lives, people spend more time dancing/chatting/playing in squares at night, so square lighting has become very necessary. Plaza lighting usually uses LED area lights and LED flood lights, but there are also many LED street light manufacturers that have also developed light distributions suitable for plaza lighting to reduce costs and expand the variety of product functions.

Parking lot lighting

With the development of the economy, automobiles have become the main means of transportation for the public. Some shopping malls, supermarkets, and hospitals will be equipped with parking lots to provide convenience for people, and the parking lot lighting is thus generated. Good parking lot lighting not only protects pedestrians but also makes a good impression to protect your business. LED street lights and post-top lights provide bright, energy-efficient lighting for parking lots of all sizes. Different parking lots also require lights with various mounting options, including straight-arm pole mounts, adjustable skid mounts, wall mounts, and more.

Outdoor industrial and logistics area lighting

We know that any large warehouse and logistics area has a lot of space in front of the entrance to facilitate the passage of vehicles through the area. Therefore, this large space needs to be illuminated by lamps at night to avoid the existence of dark areas, otherwise, it may increase the driver’s blind spot and increase potential risks. At the same time, the loading and unloading area also needs enough lighting to guide the driver, which is also convenient for workers to load and unload goods.

Non-Motorized vehicles and sidewalk lighting

They mainly refer to the roads that pedestrians and non-motor vehicles pass through. Usually, this type of lighting is combined with road lighting. During lighting design, motor vehicle lanes, non-motor vehicles, and sidewalks will be arranged according to the requirements of the project. Usually, a light will be set up to illuminate non-motorized lanes and sidewalks. The purpose of setting lighting on such roads is to provide safe and comfortable lighting conditions for pedestrians and consumers. Lighting should enable pedestrians to walk safely, recognize each other’s faces, locate them correctly, and prevent criminal activity.

ZGSM different types of street lights and their applications

Street light for tender

H series street light. H series LED street lights are ZGSM’s most successful products at present and have sold nearly 500,000 units in more than 100 countries around the world since their launch. The product adopts a module design, which is very conducive to the maintenance of lamps. Since the light source and LED power supply are placed separately, the lamp has a very good heat dissipation performance. The combined use of high-quality LUMILEDS LEDs and Inventronics programmable LED Drivers greatly extends the lifespan of this street light.

H street light application

Advantages of ZGSM H series street lights

• Low failure rate
• Wide power range: 35W-300W
• Classic modular desgin
• Both the LED module and driver are IP66 rated
• Compatible with other modules-sensor/camera

Rifle series street light. The rifle series street light is a new generation of street light from ZGSM, which adopts high-efficiency LED lamp beads. The product can be equipped with Zhaga or NEMA socket, which is convenient for customers to equip their lamps with intelligent lighting control systems in the future. At the same time, the products have a series of certifications, including ENEC, CE, CB, RoHS, etc. At present, our company is also doing ENEC+ certification to meet the requirements of customer projects for this. Many customers of ZGSM currently choose this street light to bid on government projects, which is mainly based on its high-cost performance and complete certificates and reports.

Advantages of ZGSM Rifle series street lights

• Toolless open
• Clamshell Design for easy maintenance
• Breather for protection lamps from moisture
• Level bubble for installation correctly
• Power off protector to ensure the safety of the electrician

Street light for end user

Kmini and Kmini2 series street lights. Kmini and Kmini2 series street lights have been selling well for their excellent quality, good performance, and favorable price. In addition, Kmini street lights can save up to 70% of energy costs compared to traditional lighting, which makes them ideal for rural road lighting, parking lots, residential areas, industrial parks, and more. The streamlined design and smooth surface of this series of street lamps eliminate the influence of factors such as dust and dirt on the performance of the lamp. At the same time, the Kmini street light led is small in size, easy to transport, and greatly reduces transportation costs. It is an ideal choice for many customers with high-cost performance requirements.

Advantages of ZGSM Kmini/Kmini2 series street lights

• High Cost-Effective
• Can be used as solar street light
• Suitable for rural area
• ENEC certificated street light
• Manufacturer with ISO9001 and ISO14001

Nova series street light. Nova series street light is ZGSM latest generation street light. It is modern and beautiful outdoor lighting, ideal for residential streets, sidewalks, parks, playgrounds, and other lighting places to provide the ultimate solution. Nova series led street lights have a unique visual appearance and reliable performance. At the same time, it has a lightweight design and stable performance of lamp beads and drivers. It is a very cost-effective product. As the company continues to refine its certification, we believe it will become a hit in the years to come, making it the ideal streetlight choice for lighting designers, contractors, and end users.

Advantages of ZGSM Nova series street lights

• Competitive price
• Small package for saving freight cost
• With a full set of certificates
• Level bubble for installation correctly
• Virtual midnight dimming

Street light for parking lot

L series post top light. L series post top light is designed with European elements, in addition to column top installation, it can also support 3 other installation methods, pendant installation, side entry installation, and suspension installation. These characteristics of ZGSM’s L-type street lights make them very suitable for various applications, including parking lots, courtyards, parks, playgrounds, pedestrian streets, and sidewalks. At the same time, its special installation method can be used to replace some old lamps very easily, and its application has been expanded. In addition, the toolless opening design of the L model is convenient for maintenance and future upgrades.

Advantages of ZGSM L series street lights

• Modern design with 4 ways of installation
• Suitable for replacing old street lamps
• Wide applications like parks, parking lots, pedestrian Zone, etc
• Tool-less open for easy maintenance
• Tempered glass cover

Halo series post top light. The Halo series post top light is a new generation of LED lights from ZGSM. Halo can be used as a post top light by the installation method of single arm and double arm, Halo of side entry can be used as a street light, and Halo with high bay installation can even be used as a high bay light. Therefore, its applications include parking lots, parks, city or town roads, or lighting in factories. At the same time, Halo has made improvements in heat dissipation, so that it can meet the heat dissipation requirements of lamps with fewer radiators, ensuring customers’ application requirements and providing customers with more economical solutions.

Advantages of ZGSM Halo series street lights

• One lamp with 6 installation ways
• Suitable for most common outdoor lighting
• Can be used for industrial lighting
• High efficiency up to 170lm/W
• Single arm or double arms as per customers’ requirements

Solar street light

PV3 series solar street light. PV3 all-in-one solar street light adopts an integrated design, which integrates solar panels, lithium batteries, controllers, and LED lights, which finally can greatly facilitate customer installation. PV3 supports both horizontal and vertical installation. The overall lighting efficiency of PV3 is 200lm/W, which can greatly reduce the power consumption of the system, and the lamps are equipped with relatively small batteries to reduce costs. The conversion efficiency of the monocrystalline silicon panel used in PV3 is about 23%, and it can reuse renewable resources such as solar energy. In conclusion, it is an ideal choice for lighting on rural roads or remote mountainous areas.

Advantages of ZGSM PV3 series all in one solar street lights

• All in One design, easy for installation
• Deep cycle lithium battery
• Solar panels with a 23% energy conversion rate
• 3 years warranty for the whole system
• Suitable for areas where is a lack of electricity but full of sun

N series solar LED street light. N series solar LED street light adopts a similar two-in-one design. The first part is the LED street light, which is ZGSM’s N series high-efficiency LED street light. It provides excellent lumen output for the solar street light system. The second part is the lithium battery and solar panel, which ensure continuous conversion of light energy into electricity and provide long-lasting battery life for the lamp. In addition, ZGSM provides a 3-year warranty for the solar street light system.

Advantages of ZGSM N series solar street lights

• 365 days on with intelligent computing
• MPPT charging which is more efficient
• Battery and solar panels can be customized
• Battery with MSDS report
• Lithium battery with long lifespan

Customer concerns about types of street lights

Wattage of street lights

Wattage is usually an important factor for types of street lights. When other conditions (light pole height, road width, light pole distance, boom length, boom angle, distance between the light pole and the road) are all constant, the higher the wattage of the street light, the better the lighting effect. However, many people may be unfamiliar with how to choose the wattage of LED street lights. ZGSM believes that it can start from three directions.

• Based on existing fixture type and wattage. Taking high-pressure sodium lamps as an example, 250W lamps can be replaced with 100W LED lamps. Of course, with the advancement of LED technology, they can be replaced with lower wattages in the future.
• According to the installation height of the lamps, see Several things you need to know about LED Street Light for details.
• Wattage as per lighting design. If you are interested in lighting simulation of street lights, parking lots, industrial parks, etc., you can refer to our related Blog.

Efficiency of street lights

Light efficiency is an important parameter of LED lamps. As mentioned in the previous section, we can replace 250W high-pressure sodium lamps with 100W LED street lamps. Because the high light efficiency of LEDs is the important reason. For example, in 201, the light efficiency of LED lamps was generally around 120lm/W, and now the light efficiency of LED street lights can reach 150lm/w, which means that we can use 80W LED street lamps to achieve 100W street lights in 2015.

That’s why many projects or tenders have clear requirements for lighting efficiency. The main reason is that high light efficiency means that we can achieve the desired lighting effect with less energy consumption. It is also clear in these bidding documents that different light effects can have different scores. High light efficiency means that you can compete with many competitors and stand out.

Optic of street lights

Street light LEDs are mainly used to illuminate urban/rural roads and some other outdoor areas, generally reducing road accidents and increasing residents’ sense of safety. For suppliers, types of street lights with different wattages and different light efficiency are not enough to meet the needs of different customers. Customers usually require a street light that can be adapted to illuminate different road conditions. ZGSM’s LED street lights provide a wide light distribution, suitable for different roads, such as urban roads, and country roads. It can also be used for area lightings such as parking lots and parks.

For example, in our range of Rifle, we have T2S53001, T3S53002, T3S53003, T2M53007, T3M53009, T2S55004, T3M55005, T3S55006, T2M55008, T3M55010 spectra, which give good light uniformity in the above applications.

CRI and CCT of street lights

CRI stands for the quality of light and its ability to realistically reproduce the color of an object. The highest CRI value is 100. For LED street lights, usually CRI70 can meet your light quality requirements. Of course, we also offer the option CRI80 to better represent the color of the illuminated object. CCT (Correlated Color Temperature) is a measure used to describe the relative color appearance of LED light sources.

CCT indicates whether the light source is yellowish, whitish, or bluish. The unit of CCT is Kelvin (absolute temperature unit). 2700K is “warm”, 4000K is “neutral” and 5700K is “cool”. More and more road lighting now requires 4000K, 3000K, 2700K, and even lower 2200K. This is because low color temperatures are thought to have less of an impact on humans, animals, and plants.

Certification of types of street lights

Certificates/reports of ZGSM street lights

Certification is good proof of whether the product meets the corresponding standard, or whether the product conforms to the parameter list. In terms of safety standards, for example, the most common requirements are whether LED street lights have CE and RoHS. European regions sometimes require ENEC certificates, while other regions require CB certificates. In terms of product parameters, such as light efficiency, heat dissipation, and waterproofing, the corresponding reports are LM79, ISTMT, and IP report. In terms of factory qualification, the most common is ISO9001, but ZGSM also provides ISO14001 and ISO45001. For other standard certificates or reports, see the table below.

COMPONENT STANDARDS CERTIFICATE or REPORT Refers to Certificate of safety compliance EN/IEC 60598-1 and 60598-2-3 √ CE LVD / ENEC / CB EN/IEC 62493 √ CE LVD EN/IEC 55015, EN 61547, EN/IEC 61000-3-2, and EN/IEC 61000-3-2 √ CE EMC EN/IEC 62321 √ RoHS IEC 62471 and IEC 62778 √ Blue light hazard Certificate / reports of performance EN/IEC 60529 √ IP EN/IEC 62262 and EN/IEC 60068-2-75 √ IK LM79 √ Efficacy ISTMT √ Heat dissipation TM-21 √ Lifetime LM82 √ Heat dissipation LM84 √ Lifetime ISO9007 /ASTM B117 √ Salt spray test IEC 60068-2-6/ANSI C136.31 √ Vibration test LED LM80 √ Efficacy LED module EN/IEC 62031 √ CE LVD / CB LED driver IEC 62384,IEC 61347-1,IEC 61347-2-13 √ Standards about LED driver SPD EN/IEC 61643-11 √ Standards about SPD Factory ISO9001,ISO14001,ISO50001,ISO45001 √ Qualification of ZGSM

Price of types of street lights

As the project side and the owner side, price is very important, so ZGSM also attaches great importance to the price of types of street lights. We have different street light designs, so the price varies with different series. This is also to meet the needs of different customers. They can choose accordingly according to the project budget. If you are interested in the price of street lights, please refer to How much do the street lights cost?

Summary

Through this article, I hope you have a certain understanding of different types of street lights and their application places. At the same time, when choosing types of street lights, I believe that everyone has a certain consideration of important factors. The main function of public lighting is to ensure the safety of users on roads and outdoor places and increase the vitality of the city. Different places often require different LED street lights to ensure that they meet the lighting and aesthetic requirements of the application site.

If you still don’t know how to choose the right street light for your project, you can contact us for our help, we are very happy to share the corresponding knowledge with you and make the right choice.

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From oil lamps in ancient Rome to cutting-edge LEDs, street light history spans millennia. Wealthy Romans utilized oil lamps, while London’s 1417 mandate marked early organized public lighting. William Murdoch’s 1802 gas light innovation paved the way for efficient illumination. Baltimore and Paris introduced gas streetlights, while Paris pioneered electric arc lamps in 1878, replacing gas. Edison’s vacuum bulb led to incandescent streetlights. Low-pressure sodium lamps arrived in the 1930s. Holonyak’s 1962 LED breakthrough marked a turning point. High-pressure sodium lamps dominated until LEDs surged. Modern LEDs outshine HIDs in efficiency and longevity. This journey, from ancient glow to LED brilliance, reflects remarkable progress.

1) The base (it is actually a part of the light pole, at the bottom of the light pole, its main purpose is to integrate the light pole and the ground to achieve the ideal appearance),

2) Poles are used to support lamps to a certain height to achieve ideal lighting results.

3) LED luminaire, which is also called post top light, is used to provide lighting.

In some cases, light poles and lamps are combined to achieve the desired aesthetic and engineering effects. Such lamps are generally used for lighting sidewalks, industrial parks, parks, parking lots, etc. In other cases, the light pole and the lamp are separated, which is more common in road lighting.

1. Metal Halide(MH) Street Lights
2. High Pressure Sodium (HPS) Street Lights
3. high-intensity discharge ( HID ) street lighting
4. Low Pressure Sodium (LPS) Street Lights
5. Narrow-Band Amber (NBA) LED Street Lights

Street lighting can be used for preventing road traffic crashes and injuries. Because the motorways will be evenly lit by the street lights after installation. Btw, the visibility and safety of pedestrians are both enhanced by street lighting. Even after the trees get huge and tall, the sidewalk can be illuminated by the street lights.

1. Classical street light
2. Antique street light
3. Landscape lamp
4. Post top light with single arm
5. Post top light with double arm
6. Round street light
7. Wire suspended street light

There are several types of street lights, including LED street lights, high-pressure sodium (HPS) lights, metal halide lights, and solar-powered lights.

H series LED street lights are the best among all the types because they produce more bright light, less heat, and last for years. Contact ZGSM, the best LED street light manufacturer to acquire high-quality lighting solutions.

Components of a traditional street light: it consists of three elements – a base, a light pole and a street LED luminaire.

Author introduction

Author

Hello Customers,

My name is Taylor Gong, I’m the product manager of ZGSM Tech. I have been in the LED lights industry for more than 13 years. Good at lighting design, street light system configuration, and bidding technology support. Feel free to contact us. I’m happy to provide you with the best service and products.

Email: [email protected] | WhatsApp: +8615068758483