the more light the better but what are you using already???

if your using something like 400watts than a 70watt hps would be just dumb, but if its adding against CFL than its 100% worth it.
invision Reviewed by invision on . quick question actually 2 quick questions. can i leave my light on my plants 24/7 till flower? and my next question is should i bother getting a 75 watt hps to add to my grow box? Rating: 5