Updated: 2026/3/27
Quick Answer First
The typical street light wattage range is from 30W to 300W. The correct selection of the street light types depends on road type, pole height, pole spacing, and desired brightness. In most projects, residential roads use approximately 30-60W LED, urban roads may consume 60-150W, and highways or large industrial areas may require 150W or above. In case of solar street lights, wattage must always be balanced with battery capacity, the size of solar panel and run time requirements.
Typical LED Street Light Wattage by Application
To help you quickly select the appropriate street light wattage, I have compiled a quick reference table below, which maps common applications to recommended wattage ranges. Choosing by wattage becomes easier when you match the product to the application.
Application | Typical LED Wattage | Common Use Notes |
Pedestrian paths / small residential roads | 30–60W | Suitable for lower mounting heights and lower traffic areas |
Residential / rural / landscape streets | 30–100W | A common range when very high brightness is not required |
Secondary urban roads | 60–100W | Often used where balanced efficiency and visibility are needed |
Main roads / roadway lighting | 100–150W | Common for city roads with higher traffic and stricter standards |
Highways / wide roads | 150–250W+ | Better for higher poles, wider coverage, and faster traffic |
Industrial parks | 50–100W | Common in standard industrial road layouts |
Ports / high mast applications | 200–500W | Used for very high poles and large-area illumination |
In summary, Roadway street lights: For roadways, common street lights are 250 W to 400 W HPS street lights and 100 W, 110 W, 120 W, 150 W, 200 W, 250 W, and 300 W LED street lights. And the average wattage for street lights is 80 W. The roadways often carry heavy traffic, so the lighting standards are high. If applying HPS lights, the power needs to be high. But normally, LED lights are the better choice because of their high efficiency. They can achieve the same lux level at a lower power. Since the main roads and secondary roads have different traffic and standards, the lights for them have different wattage. For instance, the main roads may need 400 W HPS street lights, while 250 W HPS lights are enough for the secondary ones.
Landscape/residential/rural street lights: Landscape street lights don’t need to provide very bright light, thus the wattage of LED street lights is generally 30-100 W.
Industrial street lights: The LED street lights in common industrial parks are similar to those on city roads. Usually, they can be 6 to 8- meters -high, and the watts can be 50-100 W. But for special areas like the ports, they apply high mast lights, which can be 20 to 50- meters -high, so the wattage is also higher. The wattage of them can be 200-500 W.
Why should you consider wattage when choosing streetlights?
The brightness is not the only thing that is influenced by street light wattage. The wattage also affects the energy usage, cost of operation, pole spacing and whether the road will achieve the needed light level. Selecting a low wattage will result in dark spots and poor visibility, whereas selecting high wattage can waste energy and increase project cost with no appreciable effect on the quality of lighting. So an appropriate wattage really matters.
Nowadays, the wattage is also to be assessed along with lumen output, optical distribution, and installation conditions. The lumen guide indicates that residential locations normally require less lumen output in comparison to main roads and highways, so the wattage requirement is diverse even prior to the choice of products.
How to convert the wattage of LED, HPS, fluorescent, and incandescent street lights?
| Light source | LED | HPS | fluorescent | incandescent |
| Light efficiency(lm/w) | 110 | 100 | 80 | 20 |
| Power factor | 90% | 85% | 85% | 100% |
| Light utilization efficiency | 90% | 60% | 60% | 60% |
| Light that passes through the housing | 90% | 60% | 60% | 60% |
Light utilization efficiency: Light sources have different light distribution designs. If the design is not reasonable enough, there will be light emitting outside of the roads or going in the wrong direction. As a result, the light utilization efficiency of this kind of street light is low.
From the table, we can determine the actual efficiency of the light sources:
- LED: 110*0.9*0.9*0.9=80.19 lm/w
- High pressure sodium: 100*0.85*0.6*0.6=30.6 lm/w
- Fluorescent: 80*0.85*0.6*0.6=24.48 lm/w
- Incandescent: 20*1*0.6*0.6=7.2 lm/w
The actual efficiency of LED street lights is 2.6 times higher than HPS lights, 3.3 times higher than fluorescent lights, and 11 times higher than incandescent lights.
Therefore, we can convert the wattage of HPS and LED according to their efficiency:
- 150 W HPS street lights≈60 W LED street lights
- 250 W HPS street lights≈100 W LED street lights
- 400 W HPS street lights≈150 W LED street lights
How to calculate the right street light wattage?
Step 1: Find out the total luminous flux
Luminous Flux (lm) = Illuminance (lx) × Area (m²)
The power of the lamp depends on how bright the road needs to be, that is, Luminous Flux. The total luminous flux can be obtained by using the illuminance standards of different countries * the area of the road to be illuminated.
- Calculate the total illuminated area
Take a road with a length of 900 meters and a width of 10 meters as an example, the total area of the road is 900 m × 10 m = 9,000 m².
- Calculate the total luminous flux
The common road illuminance standard is 20-30 lx. Here we use 20 lx for calculation, and the total luminous flux will be 20 lx × 9,000 m² = 180,000 lm. That is to say, the street lamps installed on this road need to provide a total of 180,000 lm of light.
- Calculate the luminous flux a single street lampshould provide
To find out the luminous flux of a single street lamp, you need to know the number of street lamps. Number of street lights = total length of road / street light spacing. Street light spacing is most related to height. You cab read this blog to learn more about the relationship between spacing and height. For common 8 m street lights, the spacing is generally 30 m. So there are 30 street lights on this 900 m road. The luminous flux provided by each street light should be 180,000 lm/30 m=6000 lm.
Step 2: Calculate the power
The formula for calculating power is Power (W) = Total Luminous Flux (lm)/Luminous Efficacy (lm/W).
The current Luminous Efficacy of LED street lights can basically reach more than 100 lm/W. If the Luminous Efficacy of a street light is 100 lm/W, the power of the street light is 6000 lm/100 lm/W=60 W.
Of course, this is still a simplified calculation. In real projects, you should also consider beam angle, pole height, pole spacing, road classification, and local lighting standards. Not sure what street light wattage fits your project? Tell us your road width, pole height, spacing, and target brightness, and our team can recommend a suitable LED or solar street light solution.
FAQs
Q: What Is the Wattage of a Solar Street Light?
This is one of the most common questions buyers ask, but the answer is not always as simple as the product label. The wattage of a solar street light can vary widely. In the market, you will often see solar street lights labeled as 30W to 120W, 100W to 200W, or even 200W to 500W models. On our solar street light category page, Casyoo already presents multi-wattage options such as 100W / 150W / 200W and 200W–500W ranges for different road and project scenarios. A solar street light may be marketed as 30W, 60W, 100W, 150W, 200W, or more, but the correct wattage depends on much more than the lamp itself.
Q: Can I replace a 250W HPS street light with a 100W LED street light?
Sure. A 100W LED street light is often used as a general replacement reference for a 250W HPS street light, depending on the fixture efficiency and optical performance.
Q: Is a higher wattage better for street lighting?
No. A higher wattage is not always better. The best wattage depends on the road type, lighting standard, installation condition, and energy efficiency goals.
Q: What is the typical LED street light wattage?
Typical LED street light wattage usually ranges from 30W to 300W. Smaller roads often use lower wattages, while main roads, highways, and industrial areas usually need higher wattages.
Key Takeaways
- Typical street light wattage ranges from 30W to 300W, depending on the application.
- 30W–60W is common for residential roads and paths, while 100W–150W is often used for urban roads.
- The wattage of a solar street light should be selected together with the battery, solar panel, and runtime requirements.
- LED street lights usually need less wattage than HPS fixtures for similar lighting results.
- The best way to choose street light wattage is to calculate it from the required lux, road area, and fixture efficacy.
