LED Lighting Fixtures To Buy 3 Major Misunderstandings
1. Misunderstanding 1, the expectation of the actual service life is too high. LED lighting manufacturers expect LED lifetimes to reach 100,000 hours MTBF (mean time between failures, the standard used by traditional luminaire manufacturers to measure lamp life). However, like all basic light sources, the luminous flux of an LED is also attenuated over time. Therefore, although the LED illumination time can be very long, MTBF is not the only consideration for determining the service life. The attenuation of LED lumens is affected by many environmental conditions such as ambient temperature, humidity and ventilation. Lumen attenuation is also affected by control, thermal management, current levels, and many other electrical design considerations. Many salesmen may give customers some ambiguous information for some reason when selling LEDs, which is misleading. For example, the service life of LEDs is about 100,000 hours, and the 100,000 hours here refers to the expected life of