Sea Dog LED Fixed Mount, All Around Light, 2 NM, 4" Tall. Constructed of injection molded nylon and aluminum. Installs with two #8 FH fasteners (not included). 12VDC. All navigation lights must be mounted properly to provide the correct visual alignment and allow unimpeded sight lines. Please refer to USCG regulations for 1 NM and 2 NM navigation lights for more information. CE, IP66, ABYC C-5/A-16 Compliant.