Results
| No. of fixtures | ||
| Initial cost | ||
| Wattage | ||
| Electricity cost () | ||
| Electricity cost with | ||
| Lifespan (continuous use) | ||
| Lifespan when used for |
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| No. of times an old fixture to be replaced each year | ||
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No. of times an old fixture to be replaced during the LED fixture's lifespan () |
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Cost of replacements each year ([bulb cost] × [Number of replacement per year]) |
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Annual labour cost for relamping ([Labour cost per relamping] × [Number of replacement per year]) |
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Total annual cost ([Cost of replacing fixtures] + [Electricity] + [Labour cost]) |
(same as the annual electricity cost) |
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Total cost (after ) |
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Total savings /w LED fixture (ROI) (after ) |
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Break-even point (per unit) (The amount of time necessary to save as much money as you invested initially) |
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| Break-even point with (per unit) | ||