| Existing incandescent lamp wattage |
|
Watts |
| Incandescent lamp cost |
|
dollars |
| Incandescent lamp life |
|
hours |
calc wattage
|
|
Watts |
| calc cost |
|
dollars |
| calc life (6000 hours for moderate use, 10000 hours for high use) |
|
hours |
| Number of lamps in retrofit project |
|
|
| Hours operating per week |
|
hours |
| Average cost of electricity |
|
$/kWh |
| Relamper labor costs |
|
$/hr |
| Time taken to retrofit all lamps in this project |
|
min |
| Time taken to relamp one lamp |
|
min |