These series 41 navigations lights have worldwide approval for boats up to 20 m in length (USCG, IMO, A16, CE, Steuerrad). Housing made of impact and shock resistant polycarbonate. Fresnel lens. The lamps can be mounted with two srews at the back part of the housing. Comes complete with 12 V / 25 W bulb. Range: 2 nautical miles. Nonmagnetic. Seawater resistant. Dimension: H 105 x W 92 x D 82 mm.