Table 1.
Light-trap power consumption and weight considerations.
| Light source | Energy efficiency1 | Batteries (power unit) | Trap-nights per power unit2 | Energy needed per week | Weight per week per trap |
|---|---|---|---|---|---|
| Standard incandescent white light bulb | 6% | 4 D-cell battery pack | 4 | 8 batteries | 3.2 lb |
| Fluorescent light bulb | 10%3 | Special battery (single unit) | 1.5 | 4 recharges | 8 lb |
| LED4 replacement bulb | 35% | 4 D-cell battery pack | 8 | 4 batteries | 1.6 lb |
1
Conversion of electrical current to visible light.
2
Trap-nights are the average time a trap can function on 1 battery pack (calculated from field tests). Each battery pack weighs 1.6 lb.
3
This does not include the additional power required to initiate the fluorescent tube illumination.
4
LED, light-emitting diode.