| Enter Your Bulb Wattage | 100 |
| Enter Number of Bulbs | 2 |
| Enter # of Operating Hours Per Day | 10 |
| Total Watts Per Day | 2000 |
| Divided by 1000(kWh) | 2 |
| Enter # of Operating Days Per Month | 30 |
| Total kWh Per Month | 60 |
| Enter Current kWh Cost | 0.11 |
| Per Bulb Maintenance & Ballast Per Month | 0.51 |
| Maintenance & Ballast Monthly Total | 1.02 |
| Cost Per Month to Operate Bulbs | 7.62 |
























