Quote Originally Posted by RackitMan
Years back people were discussing the idea of pulsing LEDs. The theory was that plants need so many milliseconds to chemically process photonic energy, so a continuous light source is a waste of energy. LEDs are the only current light source with fast enough switching times to take advantage by this fact.

Some estimates were that power savings might be in the 70-90% range if done properly. Can't be very difficult technically. Any experimenters/theorists here know why this idea has not caught on?

Anyone tried it?
I'm working on a pulsing unit that will take 1w Units, pump 3w through them, maintain a low thermal profile and even maintain the long life of the LED. Current tests are giving promising results (not in growing, just pulsing the diodes and watching to see how they respond,) and it looks like we might be able to offer high-powered solutions at a much cheaper cost than the competition.
khyberkitsune Reviewed by khyberkitsune on . Calling out to Weezard for LED advice My friend, I've read your stuff here and at Steve F.'s site. I want to build a dedicated flowering lamp using Ledengin 15 watters. (4 reds, 1 blue, and possibly 1 warm white; LM 317's so I can tweak the ratios.) Essentially, a copy of your 4+1 cake pan lamp but built on a 4 x 18" finned heatsink so I can see what's going on under it.) If I were to post my picks for power supply, resistor ratings / values, etc., would you critique and perhaps offer some guidance? I have already purchased Rating: 5