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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)
Lamp Use
Operating Hours per Day (h/day)
Operating Days per Year (d/year)
Utility Cost
Choose State (Optional)
Electric Cost per kWh ($/kWh)
 
Results
Electric Energy Rate (kW)
Annual Energy Consumption (kWh)
Annual Cost $ $
Optional: Name for Printed Results: