3 ms·
realistically, running LEDs over 60C spells their death. I've routinely seen 5730 alike LEDs overdriven by more than 40mA (not just few).
by xxs 2y ago
realistically, running LEDs over 60C spells their death.
I've routinely seen 5730 alike LEDs overdriven by more than 40mA (not just few).
- convolvatron 2y agoI totally agree that if run them cool enough they last forever. but I had some bridgelux 10W that I just threw in some copper tubes on an aluminum slug with a minor affordance for cooling (some slots cut in the Al to promote convection). These ran at 80C and lasted for >5 yr at at least 80% brightness. and still the primary failure mode was the little meanwell dc/dc converters playing thermal runaway. and that whole assembly cost $10 it just has to be penny pinching at the end of the day.