bro, if your using CFL lights... your bill won't go up hardly at all.
Trust me.. I'm using 2 85WATT (Actual wtts but they put out the same amount as using two 225watt incadescent bulbs.) So I'm basically pretty much using 170 actual watts.. but they're putting out the same amount of light as if I were to use two 225watt bulbs. So again.. im actually putting out 450watts total. Not sure about the lumen amount though. I'd have to check that if your wondering what that is.
My point being.. my bill went up maybe $13.00/month.
Just trust me dude.. your using CFL lights. They're meant to be used.. to save electricity in the first place... so you need not to worry.
Unless your using some crazy amount of high wattage CFL bulbs.. but it would have to be some rediculous amount like 20 bulbs or more.. to need to worry too much about your electric bill each month.
Hope this helped bro. Good luck on your grow!
Peace.
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