Calculate Savings - Feit LED 3.8 Watt (40W) Dimmable Globe Soft White (2700K) E26

light bulb savings calculations

Estimated savings based on assumptions below

	Per Year	Lifetime
Dollars Saved	$8.29	$68.12
Kilowatt Hours Saved	66	543
Gallons of Water Saved	0	0
Trees Planted	0	0

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Feit LED 3.8 Watt (40W) Dimmable Globe Soft White (2700K) E26

Wattage

3.8 watts

Rated Lifetime

15,000 hours

price

$5.95

average incandescant (INC) light bulb

Wattage

watts

Rated Lifetime

hours

price

Utility Costs and Usage

cost per kilowatt hour
bulb use per day	hours

Step 1 find the number of INC bulbs needed over this bulb's lifetime

15000 / 750 = 20

Step 2 determine the cost of replacement INC bulbs and the difference with this bulb's cost

20 * $0.50 = $10.00 cost of replacing the INC bulb

$10.00 - $5.95 = $4.05 replacement savings

Step 3 determine energy usage over the life of this bulb

40 watts * 15000 hours / 1000 watts per kW = 600 kWh

3.8 watts * 15000 hours / 1000 watts per kW = 57 kWh

Step 4 subtract to find the difference in energy usage between the bulbs

600 kWh - 57 kWh = 543 kWh lifetime savings

Step 5 find the lifetime energy cost savings

543 kWh * $0.118 = $64.07

Step 6 combine energy savings with replacement cost savings to find total lifetime savings

$64.07 + $4.05 = $68.12 total lifetime savings

Step 7 find savings per year

5 hours per day * 365 days per year = 1825 hours per year

1825 hours per year / 15000 lifetime hours = 12.17% of bulb life used per year

12.17% * 543 kWh lifetime savings = 66.065 kWh yearly savings

12.17% * $68.12 lifetime savings = $8.29 yearly savings

Savings calculations are presented as an example of potential savings; actual savings may vary based on use, utility rates and other factors. Calculations are based on national averages and assumptions and may be adjusted for a more accurate estimate of individual savings. While EnergyEarth strives to provide the most accurate information, we cannot guarantee the savings displayed.