Number of existing light to be replaced to LED: Light
Existing | LED | |
Initial Light cost | Rs | Rs |
Wattage | watt | watt |
Electricity cost ( Rs/kWh) | Rs per year | Rs per year |
Life span (continuous use) | hours | hours |
Life span when used for hours a day, days a week |
days | days |
Number of Times a traditional light to be replaced each year | Total of times (4.38 times each fixtures) |
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Number of Times a traditional light to be replaced during the LED lights’ life span (after ) |
Total of times (80 times each fixtures) |
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Cost of light replacements each year ([Incand. light cost] × [Number of replacement per year]) |
Total of (4.38 each fixtures) |
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Annual labor cost of incand. bulb replacement ([Labor cost per incand. bulb] × [Number of replacement per year]) |
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Total annual cost ([Cost of light replacement] + [Electricity] + [Labor cost]) |
Rs Rs per year | Rs per year (same as the annual electricity cost) |
Total cost (after ) |
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Total savings with LED light (after ) |
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Break-even point (The amount of time necessary to save as much money as you invested initially) |