You can't compare a Procyon 100 OR a UFO LED to an HID lamp because they are both slightly if not way out of the spectrum that is needed for cannabis plants. The key to growing with LEDs since they can't yet match the lumens of an HID and still remain REASONABLY cost efficient is to hit precisely the spectrum needed for optimal growth. The Procyon 100 uses 40 635nm and 16 470nm CREE XLamp LEDs. The UFO LED lamp uses 20 455nm and 70 627nm of an unknown brand, at least to me, 1 watt LED. The light absorption by cannabis PEAKS at roughly 660 nm in the red at 90% absorption percentage in photosynthesis and 640 nm at 80% and 430 nm in the blue at 100% absorption percentage in photosynthesis and 465 nm at 80%. Now this is the combined photosynthesis of all pigments, chlorophyll-a,-b, and carotenoids. The indiviual pigments peak at 440nm at 64% and 660nm at 50% for -a, 465nm at 80% and 640nm at 30% for -b, and 445nm at 60% and 485nm at 58% for carotenoids. The advantage of LEDs is that you can get the EXACT spectrum you need where as with HID lamps you have a broader spectrum so you are wasting some of your lumens since they aren't usable in photosynthesis. I Haven't priced these specific LEDs needed. I am not worried about that right now but you can all expect to see an LED based grow soon. I would love to team up with some of you HID growers out there for some dual grows or something to have a variable.

:smokin:Peace, one love:smokin:
Paht_Hed Reviewed by Paht_Hed on . LED growing- An instructional grow log trying this again. growing jack herer x bubbleberry in pure LED. these plants wont see any white light from seed to bud. tried posting pics once...so here we go again. questions or comments gladly answered. Dont think its been done quite like this before. ;) wish me luck! whiskeytango SnSstealth Rating: 5