Like he said look at your last months bill n see wat they charge for a kw
letsburn06 Reviewed by letsburn06 on . Cost? If I use the 45w--150w coil lights, how much will it jack up my electric bill? Per light? Monthly? I am currently using 2, but have 6 more.. It's hard for me to determine how much they are adding to my bill because I have electric heat w/seperate thermostats for each room and the bill is always kinda high during the winter. Please let me know ASAP, so if not too expensive I can get my other lights into my growbox. Thanks alot.. Sorry if question is stupid. Y.I.C Rating: 5