Cost Comparison Calculator

Boxes in yellow are computed based on your inputs in the green boxes.

Lamp Comparisons
R-30 LED

Flood Lamp

CFL
Incandescant
Wattage
Expected Life, Hours
Number of bulbs needed for 11 years (50,000 operating hours)
   
Cost of Bulb, each
Total cost of all bulbs

Power Cost

Dollars per KiloWatt hour $

Maintenance Cost Factor

Cost per bulb change $

     

Total Maintenance Cost Comparison

( Number of bulbs -1 ) * Cost

$ $ $
Total Cost

$ $ $

* 50,000 hours being equal to 11 years at 12 hours per day. 

Hudnut