LED panel light manufacturers believe that, as an environmentally friendly and energy-saving LED panel light, in addition to having the same lighting effect as other lamps, it also has a special feature that ordinary incandescent lamps do not have - dimmable, dimmable LED Panel lights have a wider range of applications than ordinary lamps, and will play a greater role in energy conservation and emission reduction.
In 2010, the country's total electricity consumption reached 2.7 trillion kWh, of which about 300 billion kWh was used for lighting alone. If LED panel lights with energy consumption only one third of traditional lighting fixtures are used, the power saving effect will be It goes without saying that LED panel lights with dimming characteristics are more popular and welcomed by consumers.
Using dimming technology to reduce output power will significantly improve the working environment of LED panel lights, prolong lamp life and improve reliability. The key factor affecting the reliability of LED panel lights is temperature.
Whether it is an LED drive power supply or an LED chip, the higher the ambient temperature, the sharper its lifespan and reliability will drop. When the ambient temperature is 25°C, the life of the LED power supply is as high as 320,000 hours, and when the temperature rises to 60°C, the life of the LED panel light power supply will be shortened to only 35,000 hours.
The higher the temperature, the greater the light decay of the LED chip. The light decay of LED is closely related to its junction temperature. The so-called junction temperature is the temperature of the semiconductor PN junction. The higher the junction temperature, the earlier the light decay of the LED light source occurs, that is, the shorter the life span.
If the junction temperature is 105°C, the lifespan of LED panel lights with brightness reduced to 70% is only more than 10,000 hours; when the junction temperature is 95°C, the lifespan of LED panel lights is 20,000 hours; and when the junction temperature is lowered to 75°C, the lifespan can be longer Up to 50,000 hours, and the life can be extended to 90,000 hours at 65°C. In summary, the key to extending the life of LED panel lights is to reduce the junction temperature.
Using dimming technology, as the output power decreases, the loss of the drive power itself will also decrease, and its case temperature will also decrease at the same time. When the ambient temperature is 25°C with full load output, the case temperature is 50°C, and when the dimming technology is used to control the output with only 50% power, the case temperature drops to 40°C, the lifespan will also be doubled, and the reliability can be improved by 25%- 40%.
The rapid development of dimming technology will bring the LED lighting dimming system into a new field, so as to popularize and promote the application of green, environmentally friendly and energy-saving LED panel lighting on a large scale.
Benwei Lighting is an LED Tube, LED flood light, LED Panel Light, LED High Bay, LED manufacturer with 12 years of experience. If you want to purchase a high-quality LED flood light or have a more in-depth understanding of the application of LED flood lights, please contact send us inquiry， our web: https://www.benweilight.com/.
