ACR SM 2 Automatic Crew Overboard Xenon Strobe FAUCET SINK All Nova Kool Refrigerators and NETWORK CABLES All Nova Kool Refrigerators and Freezers are equipped with a highly efficient variable speed Danfoss BD series compressor that is designed to run even while you are listed at a 30° angle for use with antennas up to 8' in length Bright light in all directions (360° visibility) UV resistant polycarbonate case Lightweight and compact in size Easy bracket installation The bracket is included and maintains same hole pattern as SM 2 for easy retrofit Automatically rights itself and activates when in the water High intensity LED strobe Floats upright in all conditions Minimum 40 hours continuous operating life at 30oC (86oF) or over 24 hours at 1oC (30oF) User Replaceable AA Energizer L91 Lithium Batteries (Not Included) working for over 40 hours at 30oC (86oF) or over 24 hours at 1oC (30oF)