Yes, LED lighting does need more experimenting and that has led me and my partner to dive in pretty heftily. We're 1 week in on a grow featureing three Procyon 100's(both links in sig.).

For those having issues with the ability of LEDs to grow pot plants need only to look at this months High Times Mag. they did three side-by-sides with a light from hid-hut called the UFO w 90 watts of power against a 400 mh, a 400 hps, and a 600 hps. the results basically showed somewhere around the 400 hps, but they stated that "there was a markedly different potencies, with the led plant producing much more resin". Uhh yeah, I can't wait to find out.

Pudder, there actually much less red & blue %'s in MOST mh and hps lights and the white is a combo. the energy reduction on just the light is "supposed" to be around 80% less. Thats not even figuring in other costs.

Lumens are a way of measuring light yes but the way it is calculated is based on the human eye not a plant leaf. Each wavelength in the spectrum is given a multiplier based on the eyes sensitivity to that color, therefore greens and yellows are given an exponentially larger number to multiply with than will reds and blues which are much darker to our eyes.

Please check our grow log with any ?'s or comments,
Doughboy
SnSstelth