I got a couple real cheap, one all blue, the other all red - both have 225 leds and are 14 watts each. I used them to start some plants, both weed and tomatoes. They started out great, but after they hit 6 inches, the stretch was on. They began to stretch, cause these leds just don't kick out enough light. They claim a 14 watt one is like a 150 watt HPS (not from what I've seen). I switched to a couple of CFL's and boom, the stretch stopped. Not massive size CFLs, just a couple of 28 watt ones. So it did not take much wattage to kick the leds ass. So, I'm not real impressed with leds. Ok to start seeds, but that's about it.