A 400wMH should be enough to produce around 80% of the maximum yield that you can get from a single plant (depending on temperature, mylar, bugs, deficiencies etc).
Try putting the HPS at the side of the closet, for sidelighting. Youll get a few more grams because more light is getting to the lower buds. If you do this, make sure you turn it round 180 degrees every other day.
Swizzy89304 Reviewed by Swizzy89304 on . Question. about a light I am using a 400 mh to veg there a foot tall now and I want to start to bud but I cant afford a 400 hps right now but I got a hell of a deal on a 150 hps fixture, bulb and all 30$.......at a yard sale...lol my Q is ....if I put my 400 mh on 12/12 with the 150 hps on 12/12 , will that be enough to bud and have somthing in the end? growing in a 3x3x6 closet, 4 plants , mylar every where..soil, 5 gallon buckets.....who can help ?:( Rating: 5