FAQ

How long do LEDs really last? What happens to the light output?

• What does a life of 50,000 hours mean in the case of - LEDs?
• Why is the life of LEDs measured as lumen depreciation?
• What are the factors that affect the lifespan of the LEDs?
• Is lifespan reduced if the LEDs are frequently turned on and off?
• How much longer does an LED last than a conventional light source?
• What is the best way to compare the output of LEDs with other light sources?
• Does increasing the wattage of LEDs increase their output?
• Why are LEDs considered more efficient than conventional light sources?
• What is the difference between absolute photometry and relative photometry?
• Why is it necessary to use absolute photometry for LEDs?
• What are “cold” and “hot” lumens?