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Cost savings comparing 8w LED, 20w Fluorescent, 75w Incandescent
2 foot LED uses 8w / lasts 60,000 hours / produces 600 lumens
60,000 x 8w = 480,000 watt-hours
480 kwh x $0.10 = $48 to run for its life
Total cost $66.24 + $48 = $114.24
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2 foot fluorescent 20w / lasts 9000 hours* / produces 1200 lumens
60000 / 9000 = 6.66 so 7 bulbs to last the same amount of time
60,000h x 20w = 1,200,000 watt hours
1200 kwh x $0.10 = $120
Total cost $120 + (7x $4) = $148
Potential savings $148 - $114.24 = $33.76
* According to Philips for a 2¡¯ 20w T12

24 inch led on left, 24 inch Fluorescent on right
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75w incandescent uses 75w / lasts 1000 hours / produces 1200 lumens
60000 / 1000 = 60 bulbs
60,000 x 75w = 4,500,000 watt hours
4500 kwh x $0.10 = $450
Total cost $450 + (60 x $0.50) = $480
Potential savings $480 - $114.24 = $365.76 |