SERIES 27 COMPACT, PORTABLE BATTERY LED NAVIGATION LIGHTS Series 27 is for safe navigating at night or in low light conditions. It provides all-around white LED or bicolor LED light maximising visibility on the water. It is designed for small watercraft , dinghy, canoe, row boat, kayak, etc that are manually /engine powered and less than 7 m with speeds up to 7 knots. Series 27 is portable and battery powered. SERIES 27 COMPACT, PORTABLE BATTERY LED NAVIGATION LIGHTS High quality long lasting LED included Special plastic projector lens; all-round light can be conveniently used as flashlight or spot light. Requires 4 AAA batteries (not included) Housing made from high quality plastic with seawater resistant rubber grip, buoyant. Different mounting options with special brackets, cclamp, ubracket, suction mount with flexible arm and glue pad for irregular surface. It is easy to remove for portable use or storage.