I have 2 6500k lights right now plus a 100 watt hps. I had to get rid of all my plants, so i clipped a bunch of clones and I am waiting for the roots to start. They all look healthy and vital. Its been about 6 days and no sighn of roots. I hope I am doing it right. I have the stems in water with the lights on them 24 hours. I feel like they are not going to grow roots, but I know they will. My friend showed me what to do an he said he does it like that all the time. Well I'll keep you informed with my progress. I can't wait to get them in soil and start growing again.