|
|
 |
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. |
|
Site Map 
Printer friendly
Email this page
