Originally Posted by
DETANE
http:///forum/post/3142501
Depends on how long you have them on for. (TIMER)?
DWP FORMULA for ELECTRICAL COST.
1). AMPS x VOLTS (120) = WATTS
2). WATTS x HOURS = WATTS PER HOUR (ENERGY)
3). WATTS HOURS ÷ 1000 = KWH (KILOWATT HOURS)
4). 0.07288 (RATE) x KWH = COST
EXAMPLE:
250 watts x 8 hours = 2,000 (total watts per hour)
2000 watts ÷ 1,000 = 2 KWH
.07288 rate x 2 KWH = 0.14576
So your payin 14 cents every 8 hours of use on a 250 watt fixture.
0.14576 x 3 = 0.43727 . So your paying 43 cents for 8 hours.
HOPE THIS HELPS
I was actually thinking about this the other day. Respect on the information. Dont take offensively, your picture doesnt match your mathematical skills