Navilight Tricolor 2NM w/Navibolt Base & Rail Mount - BlackPortable Tricolor Navilight with Navibolt base, compatible with Navisafe Navimount system. This is an extremely durable and strong solution. This is a very low and tight mounting solution together with the any of the Navimount.Technical Specifications: US Coast Guard approved for 2 nautical miles 5 Modes: Tricolor Masthead light (135x white, 112,5x red, 112,5x green), BiColor side light, red side light, green side light, white Sternlight Floats light facing up Submersible to 20M/66&'; Corrosion resistant Powered by three AAA batteries (not included) Navimount RAIL Mount - Black The Navimount RAIL mount is designed to attach the Navilights with Magnetic base, Navimount base or Suction base onto any 25 or 35mm / 1" or 1-1/4" rail. Navilight models 001, 010, 040, 305, 340 require in addition the Navisafe converter Navimount / 960 Navilight models 041 and 341 do not require additional converters and can be mounted directly WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Specifications: Lens Color: White/Red/Green Visible Range (Miles): 2nm Housing: Black Voltage - Input Range (Volts): 3 AAA Batteries (Not Included) LED: Yes Box Dimensions: 3"H x 3"W x 5"L WT: 0.5 lbs