Changhui Lighting: FAQs of LED Street Lights (2)

Q: 7. What are the advantages of using LED lamps as light sources for environmental protection? Answer: LED-based lighting fixtures have no mercury or harmful gases, which can achieve the longest service life and minimize waste. In addition, they are made of fully recyclable materials, so their pollution to the environment is minimal. When they are applied to facilities such as specially designed LED street lights, they can eliminate light pollution, turn night into day and reduce the adverse effects of street lights on people outdoors. Q: 8. Why does the maximum power of the solar street lights produced do not exceed this 110W? A: The technology of producing high-power LED street lights is not a problem. However, the leaders of Utron are very wise to think that the use of LED technology is to focus on energy consumption. For the lighting of many facilities, a 110W LED street light can effectively replace a traditional high-power street light. As LED technology continues to advance, the idea of u200bu200bgenerating greater lumens per watt will become possible. Youchuang will take advantage of this advantage to produce more energy-saving, high-efficiency and environmentally friendly lamps. Q: 9. Why don't you use the lens on the LED lights of Youchuang? A: Other manufacturers of LED lights use lenses to directly output the LED light through the lens. However, using a lens will bring a series of problems: the cost of the lens is high, a lens will absorb 20% of the brightness of the output light of an LED, and the mirror surface of the lens is easy to be dirty, which will affect the light intensity for a long time. Utron uses their own developed and patented reflector cup technology to direct each beam of LED light. The manufacturing cost of the reflector cup is cheaper than that of the lens. It does not absorb light, so that each beam of light is effectively distributed, which is more efficient than using a lens. Q: 10. How does the ambient temperature affect the effect of the LED? A: The heat dissipation control of the junction temperature must be taken into account when designing the LED lamp device as a key component, and a good quality LED light source must be used. Unlike fluorescent lamps, low temperature environment will not affect the effect of LED lamps. Q: 11. What is the junction temperature? A: The junction temperature is the temperature produced by the contacts where each diode connects to the base when the LED is operating. Keeping the junction temperature at a minimum level increases the LED light attenuation. Junction temperature is the key to evaluating the quality of LED products, and low junction temperature can prolong the life of LED. Q: 12. How to manage and control the junction temperature? A: Youchuang's LED lamps use aluminum heat sinks as the lamp housing. This unique design minimizes the junction temperature as much as possible. Q: 13. How long can the LED last? A: An LED light source will not have the same service life as a traditional light source. In contrast, light-emitting diodes lose very little light over time. Under normal circumstances, the service life of LED light sources is 50,000 hours or longer. If one of the LEDs is damaged, it will not affect the continued lighting of the entire lamp. Q: 14. Why is the life of LED measured by light decay? Q: LED lamps have a much longer lifespan than incandescent and fluorescent lamps or xenon lamps. LED lights generally have a service life of 50,000 hours to 100,000 hours. With the passage of time, the luminous flux of LED lamps with long use time will become smaller and will not be completely scrapped. This reduction in luminous flux is called light decay, and the usable time (working time) of an LED light is calculated by light decay. The industry standard to evaluate the service life of LED lamps is when the LED light source reaches 30% light decay as an evaluation point. 100,000 hours is not equal to the service life of a lamp. The service life of the LED light source is rated to be scrapped when the light decay reaches 30%. More than 10 hours of LED light source will still work, but the luminous flux will be reduced.