Signal Mate's 2NM 225 Special Flashing Yellow LED Towing Light is certified USCG / ABYC A-16 & 72 COLREGS.This light is small but robust, featuring latest technology high-brightness LEDs that indicate the center of the barge. It flashes at 60 flashes per minute (fpm) and features a secondary optics to increase the brightness while maintaining low current draw. Constant brightness over the full operating range of 10V to 30V DC ensures the light will meet or exceed nautical mile requirements if the battery voltage drops. Active & passive RF filtering to prevent radio interference. Reverse polarity-protected, surge-protected, waterproof and vibration-proof. Includes bracket.Specifications:Visibility: 2NMBoat Type: Vessels being pushed or side towedVoltage Range: 10-28VDCCurrent Draw: 0.17 amp at 12VDCConstruction: Black hard coated anodized aluminum, polycarbonate lensWiring: 2.5 feet UV outdoor cable, 20 AWG wireSize: 1 1/2" x 3 1/4"Weight: 6.4 ozEnvironment: Harsh marine: Waterproof, submersibleLight Source: Dual LEDs, 50,000 hour full-brightness lifeHorizontal Viewing Angle: 225Vertical Viewing Angle: >70Mounting: 1/4 x 20 female threads atop and bottom of light or optional adjustable bracketWarranty: 5 yearsCertifications: USCG 2NM, ABYC-A16, COLREGS '72