Key rebate terms and definitions
kWh – Kilowatt Hour
kW – Kilowatt
W – Watt
Lumens - the amount of light emitted from a Lamp or Fixture
Wattage – The amount of energy required to power a Lamp or Fixture.

Calculations – Utility rebate companies with calculated savings incentives,
calculate the rebate based on the energy savings
from a less efficient model to a more efficient model.

Lighting Calculator Information
Average Existing lifetime and costs for existing products
Incandescent – 1500 Hours $1.50 per lamp
CFL ≤ 13W - 10000 Hours $5.00 per lamp
CFL > 13W - 10000 Hours $7.00 per lamp
Reflector – 2500 Hours $5.00 per lamp
HID Lamp ≤ 175W – 20000 Hours $13.00 per lamp
HID Lamp > 175W – 20000 Hours $20.00 per lamp
Linear Fluorescent – 24000 Hours $3.00 per lamp

Lighting calculator pre-populates the national average price for commercial electric usage per kWh
which is $.12/kWh.  Consult your power bill to calculate accurate electricity cost per kWh.