Poseidon Illuminating Head Adapter + Green Night Light w/Twilight Sensor makes it easy to find your boat location at night.
The green light head which uses only two AAA batteries has a twilight sensor and is visible from up to 1450 feet!
As soon as dusk sets in, the light comes on and switches off automatically during the day. Now it's even easier to orientate yourself on the water at night, or even while walking on the bank.
This ensures that you always have a reference point on the bank at night!