Calculator Input Guide:
1. What is the wattage of your original lamp?
2. What is the wattage of your new replacement lamp?
3. How many lamps are you replacing?
4. How many hours a day are your current lamps turned on?
5. How many days a week do you use your current lamps?
6. How many weeks per year do you use your current lamps?
7. What is your energy cost of kilowatts per year (kWh)?
Hint: If you are unsure, the energy cost per kWh is typically $0.10