Aqua Signal LED Portable Stern Navigation Light Kit Designed for safe navigating at night on small watercraft, dinghy, canoe, row boat, kayak, etc that are manually powered or less than 23' with speeds up to 7 knots Lights are compact, only 5 1/2" length, requires 4 AAA batteries not included Special plastic projector lens that allows light to be conveniently used as flashlight or spot light Flexible mounting options; c-clamp, suction mount with 4.5" flexible arm, 24" pole assembly with u-bracket and special adapter for adhering to irregular surfaces Housing incorporates carabineer clip to allow for attaching to boat with a lanyard to prevent loss overboard