As an environmentally friendly energy-saving light, LED panel light has the same effect as other lamps in lighting, there is a special performance that the incandescent lamp does not have – dimmable function, different from ordinary lamp, dimming LED panel light is suitable for wider applications as well as it also play a great role in energy-saving and emission reduction.
2016, the country’s total electricity consumption reached 5.9 trillion kw.h, of which only lighting electricity has about 600 billion kw.h, if we use the LED panel light or other LED lights which consuming 1/3 less energy to replace the tradition lamp, the energy-saving effect will be obvious, thus LED panel light with dimming function is more popular among consumers.
The dimming technology reduce the output power, which significantly improve the working environment of LED panel light, extend lifespan of light and improve its reliability. The key factor affecting the reliability of LED panel lights is temperature.
Whether it is LED power supply or LED chip, the higher ambient temperature is, the less lifespan and reliability will be. LED power supply service life is up to 320,000 hours in 25 ℃ ambient temperature, but it will be sharply down to only 35,000 hours in 60 ℃ ambient temperature.
With higher temperature, the LED chip’s light failure rate is also significantly increased. LED light failure is closely related to its junction temperature that is temperature of the semiconductor PN junction, higher junction temperature, LED light source will sooner occur the light failure, which means shorter lifespan of LED light.
If the junction temperature is 105 ℃, the LED light will just work 10,000 hours as well as brightness down to 70%; the junction temperature is 95 ℃, the LED light can work 20,000 hours; the junction temperature is 75 ℃, the LED light will serve 50,000 hours; while the junction temperature is 65 ℃, the LED light will serve as long as 90,000 hours. In other words, the key of extending LED light lifespan is to reduce the junction temperature.
Adopt dimming technology, reducing output power, the LED power supply will decline its own power consumption, and the shell temperature will decline at the same time. When the ambient temperature is 25 ℃ and at full load, the shell temperature is 50 ℃, but when you use dimming technology to control output to only 50% load, the shell temperature will drop to 40 ℃, service life will be doubled, reliability can be increased by 25% 40%.
With rapid development of dimming technology, LED lighting dimming system will be brought into a new field, which will help to popularize and promote the green and energy-saving LED panel lighting.
Shenzhen Loevet Co. , Ltd specialize in R&D dimming LED panel light and other LED lighting products, with high quality, excellent material, beautiful design, perfect selling service .If you have interests in our lighting products, please feel free to contact us by email: [email protected] at any time.