I will start growing an autoflower under 3, 42W compact fluorescent and cant raise my bill up too much for both cycles 18\6 and 12\12 ? and how many can i get on the harvest? i'm growing a white widow. btw
I REALLY depends on what your electric utility charges you per kilowatt-hour. Where I live they charge 9.7 cents/Kwh. 3 bulbs x 42 watts= 126 watts or 0.126kilowatts So over one hour you will consume 0.126kwh 0.126kwh x 9.7cents= 1.22 cents per hour 1.22 cents x 12 hours=14.64cents You get the idea.....