Question 1

What is the code for street light distance?

Accepted Answer

Through the study of the main text, we know that street light spacing is not determined by a single universal standard, but rather by a combination of factors including lighting standards, road type, pole height, and local regulations. In earlier years, due to the unreasonal light distribution of street lights, the industry rule of thumb was that street light distance was typically 2.5 to 3 times the pole height. However, with the optimization of LED street light distribution in recent years, this old rule of thumb has become outdated. The current industry rule of thumb suggests that street light distance is typically 3.5 to 5 times the pole height, or even higher (under lower lighting requirements). For example, if your street light pole height is 8 meters, the recommended spacing between poles would be approximately 28 to 40 meters. In some special cases, a street light distance of 50 meters is also acceptable.

Question 2

What’s the height of street lighting?

Accepted Answer

There is no fixed standard for streetlight pole height; it typically ranges from 3 to 12 meters, depending on the specific application. Generally speaking, narrower roads call for shorter poles, while wider roads require taller ones. In residential areas and on courtyard paths, where roads are typically narrow, streetlight poles of 3–6 meters are generally recommended. For major urban thoroughfares and highways, which are generally wider, streetlight poles of 8–12 meters are typically recommended to cover a wider road surface and effectively reduce the number of poles required. In addition, streetlight height is also related to luminaire power, pole spacing, and lighting standards (such as EN 13201). For example, 20–30W LED lamps are suitable for 5–6 meter poles, 50–120W streetlights are suitable for 6–9-meter poles, while 150–240W lamps require 9–12-meter poles. To learn more, please visit our blog: “What factors determine the height of street lights?”

Question 3

Why do dark spots appear on the street lighting?

Accepted Answer

The appearance of alternating bright and dark spots in street lighting, also known as the “Zebra Effect”, is mainly caused by defects in the design of the light distribution of the luminaires, the different heights of the poles, excessive spacing between poles, or the disordered arrangement of the poles. These problems lead to a sharp contrast on the road surface, alternating patches of high brightness and pitch-black voids. Moreover, the uneven distribution of street lighting creates many shadows and blind spots, thus increasing the likelihood of public security incidents. At the same time, a dark environment is not conducive to residents going to public spaces for night activities, so the actual utilization rate of these spaces is greatly reduced. These poor lighting conditions greatly increase safety hazards in areas of the roadway where the surface is uneven, specifically increasing the potential for pedestrians to suffer injuries from slips and trips.

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How to determine the best street light distance?

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LED Street Light

High Mast Light

Led Flood Light

Solar Flood Light

LED High Bay Light

LED Tunnel Light

LED Garden Light

Led Bollard Light

Solar Street Light

LED Traffic Light

LED Canopy Light

Lighting Accessories

Smart Systems

Simulation Design

Smart Financing