Light bulb projected lifespan |
50,000 hours |
10,000 hours |
1,200 hours |
Watts per bulb (equiv. 60 watts) |
10 |
13 |
60 |
Cost per bulb |
$14.97 |
$2.66 |
$0.69 |
KWh of electricity used over
50,000 hours |
500 |
650 |
3000 |
Cost of electricity used over 50,000 light hours |
$102 |
$133 |
$614 |
Bulbs needed for 50,000 light hours |
1 |
5 |
42 |
Equivalent 50,000 light hours bulb expense |
$14.97 |
$13.32 |
$28.75 |
Total Life Cycle Cost for 50,000 light hours |
$117.27 |
$146.30 |
$642.52 |