Yes Craddyback, you have it right that the procyon is closer to a 250HPS, at least when it comes to our "photon whore" mj plant. I have also used LEDs on other plants, such as grape vines, and the difference is not as great.

I had used one of the original TI problooms I now have in a viticulture experiment and it pretty much equalled a 600w HPS, so much so I couldn't wait to use it on mj. I quickly did a "quick and dirty" grow in 2- 120 site EZ-clonners from start to finish (they say you can't grow to compeletion in a cloner, but hey the plants don't know that). Since they took up abt the same area as my previous grape cuttings I thought they'd do better then they actually did do. Difference in light needs of the plant is a major factor.
That was a long explanation to explain and give an excuse to some mfg claims about equivalent light comparisons.

So Crabby, maybe it's not a dumbass plant but it is a whore...for protons.:thumbsup:
oldmac Reviewed by oldmac on . Procyon vs UFO LED Hello and hi, Does any kind gardener have the scoop on this here comparison? What I'd like to know is how these much more affordable 90W UFO's compare with the much more expensive Procyon 100's. While I do expect the Procyon's to outperform their lesser competitor, perhaps this 'lesser' is not so less? I don't expect anyone to give an answer who has done a scientific, side by side experiment in a NASA laboratory, but any advice from some UFO experienced growers would be thirstily Rating: 5