ENERGY SAVER AND PAYBACK CALCULATOR (Enter the Data in Higlighted cell for Comparison) EXISTING FIXTURES:- NO. OF LAMPS PER FIXTURE: 1 NO. OF FIXTURES: 1 POWER INPUT PER FIXTURE: 40 Watts HOURS OF OPERATION/DAY: 10 Hours COST PER FIXTURE: 250 Rupees NEW LED FIXTURE:- NO. OF LED PER FIXTURE: 3 NO. OF FIXTURES: 1 POWER INPUT PER FIXTURE: 3.5 Watts HOURS OF OPERATION/DAY: 10 Hours COST PER FIXTURE: 600 Rupees ENERGY COST:- RATE PER UNIT: 6 Rs/UnIt RESULTS:- EXISTING LED ANNUAL ENERGY USE: 146 12.775 Kilo Watts ANNUAL ENERGY COST: 876 76.65 Rupees EFFICACY 12.6 90 lm/W YOU SAVE: 799.35 Rs/Year PAYBACK DAYS: 159.8174 Days NOTES: 1. LEDs used are of CREE, USA and comes with the life cycle of minimum 40,000 Hrs. Hence the maintananc replacement cost is saved upon besides the Power Saving compare to conventional Lights. 2. Default comparison made is between Tungsten bulb(40 W) for Warm White Color light and CFL/Mercury 0 Hrs. Hence the maintanance and al Lights. Color light and CFL/Mercury Vapor Lamp(40 W) for White light.
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