Comment on What is the secret to making LED light bulbs last as long as the package says?
Successful_Try543@feddit.org 4 months agoBut then the voltage per LED increases, leading to soon death of another LED, so this is a ‘just for the moment’ fix.
XeroxCool@lemmy.world 4 months ago
Not necessarily. Proper LED drivers adjust voltage to feed them a certain specified current. The driver will decrease voltage and heat more if it’s a basic transistor circuit but smarter circuits will just chop the power more. Even if it does supply the higher voltage due to use of a basic resistor circuit, there should be some safety factor that keeps the emitters below max power, so having 8% higher voltage shouldn’t affect longevity much. There’s many variables. Obviously everything I listed is regarding ideal conditions
Successful_Try543@feddit.org 4 months ago
Ah, yes the LED driver is usually constant current type. I’ve been thinking too simply and assumed it’s constant voltage.