Outdoor Lighting Costs
See how the following outdoor lighting choices compare:
| EFFICIENT OUTDOOR LIGHTING COSTS | |||||
| Type | Wattage | Lumens (light output) | Annual Cost to Use | Annual Savings vs. Incandescent | |
| 4 hr/ night | dusk to dawn | ||||
| Compact fluorescent | 15 | 925 | $2.08 | - | $5.61 |
| - | $5.72 | $15.33 | |||
| Compact fluorescent | 23 | 1,290 | $2.94 | - |
$8.59 |
| - | $8.07 | $23.51 | |||
| High-pressure sodium | 35 | 2,025 | - | $13.52 | $39.30 |
| Incandescent w/motion sensor | 75 | 1,170 | - | $2.16 | $24.15 |
Assumptions: Dusk-to-dawn lighting operates an average of 11 hours per night. Motion sensor lights are on approximately 30 minutes per night.
