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Return on Investment for LED Lights compared to Incandescent & CFL

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As we all know LED Lights are becoming popular due to various benefits it can offer. There has been lot of emails and questions regarding how much electricity can be saved and what will be the payback when compared to CFL and Incandescent lights.


Comparing 60 Watts of Incandescent Lights with CFL/LED that can produce same amount of light (Lumens):



LED Light
CFL
Incandescent
Lumens/Watt
120
51
12
Life Time in Hours
50,000
6000
1200
Watts required
6
14
60
Cost of the bulb in Rupees
1,200
180
60
Kwh used for 50K hours
300
700
3000
Electricity Cost @ Rs.7.00
2,100
4,900
21,000
Replacement of bulbs for 50K Hrs
1
5
42
Replacement Expenses + bulb cost
0
1,155
3,360
Total cost in Rupees
3,300
6,055
24,360







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