Marpac Clamp-on LED Bow Light 7-1312

LED Advantage means low power draw, batteries last longer than standard incandescent bulbs.
Compact size takes up less space on deck.
Easy to store.
Great for boats less than 23 (7 meters) with a maximum speed of 7 knots (8 MPH).
Clamps vertically or horizontally for maximum flexibility.
Requires (3) AAA Batteries. Not included.