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Screw-In Lighting Cost Calculator
About | How To Use | Definitions

User Inputs
  Efficient
Lamps		 Old
Lamps
Lamp Information
Lamp Type (Select from Box at Right)
Number of Lamps
Lamp Wattage (W)
Use and Energy Cost
Operating Hours per Day (h/day)
Operating Days per Year (d/year)
Electric Cost per kWh ($/kWh)
 
Results
Electric Energy Rate (kW)
Annual Energy Consumption (kWh)
Annual Cost $ $
Optional: Name for Printed Results: