High-power LED street lights are an alternative to HPSL and have the following advantages:
1. Unidirectional light
The characteristics of the LED street light pole itself – unidirectional light, no light diffusion, to ensure light efficiency.
2. High luminous efficiency
LED street light has a unique secondary optical design, which irradiates the light of the LED street light to the area that needs to be illuminated, further improving the lighting efficiency. Energy saving has been achieved. At present, the light source efficiency of LED has reached 100lm/w, and there is still a lot of room for development, with a theoretical value of 200lm/w. The luminous efficiency of high-pressure sodium lights increases with the increase of power. Therefore, the overall luminous efficiency of LED street lights is stronger than that of high-pressure sodium lights.
3. High light color rendering
The light color rendering of LED street lights is much higher than that of high-pressure sodium lights. Sodium lights have been reduced (refer to UK road lighting standards.)
4. the light decay is small
Light decay of LED street lights is small, less than 3% in one year, and the service year still meets the requirements of road use lighting, while the high pressure sodium light decay is large, and it has dropped by more than 30% in about a year. Therefore, LED street lights are designed to use power. can be lower than high pressure sodium lights.
5. Energy saving and electricity saving
LED street light has an automatic control energy-saving device, which can achieve the maximum possible power reduction and save energy under the condition of meeting the lighting requirements of different periods.
Relatively safe to use. LED is a low-voltage device, the voltage for driving a single LED is a safe voltage, and the single power of the series products is 1 watt, so it is a safer power supply than using a high-voltage power supply, especially suitable for use in public places (for example: street lighting, Factory and mine lighting, automotive lighting, civil lighting, etc.