Me too for LEDs, They didn't really grow under 18w PCs that come stock with my pico, Switched to LEDs and everything is growing crazy fast, until last week when I started messing with the LEDs and found myself in a dilema. so they went without light for a week, well they got sunlight for about 1 1/2 hrs a day. I wish i had a controller for it, so I can have the cool whites on when I'm gone, then do a mix when I'm there. The CW to promote fast growth, and the blue to promote good color.