And by choke you mean ballast or transformer plus any optional starting capacitor.
Tube light watts per hour.
Divide by 1 000 to get 06 kwh 06 kwh multiplied by 12 cents is 0072 cents.
Favourite answer assuming by tube light you mean a fluorescent tube and not a neon tube.
60 watts multiplied by one hour is 60 watt hours of energy.
For instance a double tube fixture with a total wattage of 80 watts two 40 watt tubes in operation for 240 hours per month uses 19 200 watt hours of energy.
The average a19 incandescent light bulb uses 60 watts of electricity which is a good starting point if the bulb is inaccessible.
Simply enter the amount of electricity the appliance uses in watts or kilowatts and the length of time it is used in hours or minutes then instantly see the cost.
140 watts 2 x4 3 lamp 178 watts 2 x4 4 lamp 158 watts 8 2 lamp 178 watts 8 4 4 lamps by using the averages we are able to get a good comparison against newer technologies with lower fixture wattages.
In this case the utility would pay a rebate based on the 372 kwh of energy consumption saved over the course of the year from the more efficient lighting.
The rate at which a lamp is able to convert power watts into light lumens expressed in lumens per watt lpw or lm w.
Step 4 divide the watt hours by 1 000.
Description typical watts 70 watt metal halide 95 100 watt metal halide 113 6 175 watt metal halide 198 9 200 watt pulse start metal halide 227 3 250 watt metal halide 284 1.
U tube 1 lamp t12 fb40 48 u tube 2 lamp fb40es t12 ee mag 72 u tube 2 lamp fb40es t12 std mag 82 1 lamp f96 t12 8ft 83.
Multiply the fixture s wattage by its hours of use.
89 watts 2 x2 u shape lamp.
Fixture watts bulb watts bulb quantity.
You want to calculate your 60 watt light bulb energy use and cost per hour.
To find the total wattage of a fixture add the wattage of each light bulb together.
If you operate your lighting for 4 320 hours per year 12 hours per day 360 days per year the 100w par38 would use 432 kwh per year and the 14w led par38 would use just over 60 kwh per year.