Old ver.

Making the switch to LED lighting?
Answer the following questions on your current lighting usage, plus the LED replacement, to calculate your savings.

Number of lights to be replaced units
Old lamp (to be replaced) Wattage: Watt
Price per unit: US$
Incandescent/Halogen 2,500 hours
Metal Halide 6,000 hours
Fluorescent/CFL 8,000 hours
Pulse Start Metal Halide 15,000 hours
High Pressure Sodium 20,000 hours
LED lamp (new lamp) Wattage: Watt
Price per unit: US$
Energy rate
The average residential price of electricity in the U.S. in 2014 was 10.41¢/kWh.
To find the price per kWh for your state and sector, check your energy bill or go to the EIA website.
Hours of operation
Other factors (optional) Labor cost for relamping: