Ok I'm getting my operation underway again, and I'm thinking about changing things up. I've grown with cfl's before and t-5's together and I managed some pretty nice yields. I can't remember the exact wattage and/or lumens off the top of my head, but I do know my electricity bill was much higher than expected. I don't know much about led's but I did just find one on amazon that I'm thinking about purchasing ASAP. The picture is attached. I'll be growing two girls in a tent that measures 4x2x5'. Do you just turn these on and let them go, or is there something you have to do them between veg and bloom stages?