We seem to recall a time when we were very impressed when consumer light emitting diodes had achieved 100 lumens per watt. Engineering LEDs to output twice that power was only a hoop dream except within certain conditions in laboratory…
We seem to recall a time when we were very impressed when consumer light emitting diodes had achieved 100 lumens per watt. Engineering LEDs to output twice that power was only a hoop dream except within certain conditions in laboratory…