Your using a MV?

MV lights arnt really very good for growing.

Tbh, i'd get rid of it because it seems to be doing more bad than good.

My advice would be to get some [CFL] compact fluo lights, curly ones. Get the highest wattage you can. That'll sort you out for the vegative stage of growth.

You may want to look in HPS [High Pressure Sodium] for flowering, as this is the right spectrum, and with HPS you can get very good yeilds.