Basic Knowledge About Street Lights

Street lights are an important part of urban infrastructure, mainly used to illuminate public roads, streets, parks and other public places at night or in low light conditions. It not only improves the safety of pedestrians, but also prevents the occurrence of criminal acts to a certain extent. Here are some basic knowledge about street lights:

1. Types
High-pressure sodium lamps: common yellow light sources with high light efficiency and life, widely used for road and street lighting.
Metal halide lamps: emit relatively bright white light, often used in places requiring high-brightness lighting.
LED lights: have gradually become popular in recent years, with advantages such as low energy consumption, long life, fast start-up, and adjustable brightness and color temperature.
Solar street lights: use solar panels to store electricity during the day and use them at night, which is environmentally friendly and energy-saving and suitable for remote areas.
2. Illuminance and layout
The illumination of street lights must meet road safety standards. Generally speaking, the illumination requirements for lanes and sidewalks are different.
The spacing of street lights is usually determined by the height of the street lights and the intensity of the light source. Generally, the higher the street lights, the larger the spacing required.
3. Control system
Light sensing control: automatically turn on or off street lights by sensing the intensity of ambient light.
Time-controlled switch: turns on and off street lights according to the set time, often used on the main roads in the city.
Intelligent control system: combined with the Internet of Things technology, street lights can be remotely monitored, adjusted and managed, with significant energy-saving effects.
4. Energy-saving measures
Use LED light sources: Compared with traditional light sources, LED lights consume less energy.
Intelligent dimming: automatically adjusts the brightness according to traffic flow or time period to avoid unnecessary energy waste.
Use efficient light sources and reflectors: improve light utilization, reduce scattering and waste.
5. Maintenance and management
Regular inspection: ensure the normal operation of lamps and control systems to avoid lighting effects due to faults.
Clean lampshades: prevent dust accumulation from affecting lighting effects.
Timely replacement: replace aging bulbs or damaged parts to ensure the normal use of street lights.


Street lights play a vital role in urban development. With the advancement of science and technology, the intelligence and energy saving of street lights will become the future development trend.

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