16
2025
-
12
Interpretation of light attenuation control technology and industry standards for geographic lamps, wall washers, and line lamps
2025-12-16 11:29
Category:
Light decay is a core factor affecting the lifespan of lighting fixtures, and the industry has established clear standards and solutions. According to the national standard GB 24755-2010, the light attenuation rate of lamps with a lifespan of 50000 hours should be ≤ 15%, and for products with a lifespan of 100000 hours, it should be ≤ 10%. The light attenuation control of the three types of lamps has its own focus: the wall wash lamp adopts a dual strategy of "chip selection+heat dissipation optimization" due to its high power, and prioritizes the use of low heating 1W lamp beads to avoid the heat dissipation problem of the 3W model. The aluminum shell design needs to ensure the heat dissipation area and air convection.
Light decay is a core factor affecting the lifespan of lighting fixtures, and the industry has established clear standards and solutions. According to the national standard GB 24755-2010, the light attenuation rate of lamps with a lifespan of 50000 hours should be ≤ 15%, and for products with a lifespan of 100000 hours, it should be ≤ 10%. The light attenuation control of the three types of lamps has its own focus: the wall wash lamp adopts a dual strategy of "chip selection+heat dissipation optimization" due to its high power, and prioritizes the use of low heating 1W lamp beads to avoid the heat dissipation problem of the 3W model. The aluminum shell design needs to ensure the heat dissipation area and air convection.
The line lamp controls light attenuation through constant current driving technology, and the driving current deviation is strictly controlled within ± 3%, which can maintain stable output even with voltage fluctuations. Geography lamps focus on the selection of packaging materials, and use anti-aging silica gel and high-temperature lens to slow down the degradation of optical performance in outdoor environment. In daily maintenance, regularly cleaning the heat dissipation channel and controlling the working temperature below 60 ℃ can reduce the actual light decay rate by more than 20%. Light attenuation control has become a core indicator for measuring product quality and a key basis for engineering acceptance.
-