"you might want to put the 600w on for an hour/off for an hour or some similar schedule"

I can't recommend that PD, as that's going to stress the ballast and bulb with multiple cyclings and could possibly cause premature failure of both.
khyberkitsune Reviewed by khyberkitsune on . Lighting question hey , im using a 600w HPS in the last 2 weeks of veg , 18/6 . this is to big for my setup about 2 meters sq. im having problems with heat 32c so when im not there i switch to some CFL/t5 flors , about 110w total. so mid week hps is on 8 hours , flor is on 10 hours . will this hurt the plants ? and can i continue this in to flower stage and finish ? i know it will effect yield . it is my first attempt and just on a learning curve . tks Rating: 5