Remember if you need to be concerned with the amount of electricity you are using so you don't start popping breakers. Use the basic formula
"Power = Electromotiveforce * Ampres" to find what an item uses.
rearrange the formula to :
Ampres = Power / Electromotiveforce.....so If my light is 400 watts, and operates off of a 120 volt outlet.
Ampres = 400 /120
3 1/3 Amps
Just thought this might be helpful to ya too....