what size light should i get for 4 young plants and up to what size should i use this light? i have a 600watt lamp, but that seems like waay to much, and its killing my electricity bill. thanks
I use 6- 42 watt cfls for vegging and the 600 watt for flowering, Thats all I use for 4 plants....check the spectrum before you buy, you want the higher one for vegging!