So, where i live, energy is a wapping .79 per kWh... so how would you suggest i give my plants the light they need? i'll be growing 2-3 white widow plants, and wish the get the biggest yeild (obviously ) and i'm just curios on how you guys think i should run it, i was thinking of using 400 watt bulbs, but with this running 12-18 hour s day, my electricity will jump up 100-150$ a month if i'm correct, and that will cause a red flag in my opinion, and for that price of electricity i might as well just buy my buds thanks guys!