Mega Masthead Light Part Number 3310

Mega-Light masthead features a light sensor that automatically switches on at dusk and off at dawn. The dual-function Fresnel lens projects light for up to two nautical miles (3.7km).
Comes mounted to a stainless bracket for easy installation to a masthead, interior wall or bulkhead. Comes with 12" (30 cm) lead wire. On-off switch and fuse holder for hard-wire installation not included. Comes with one bayonet light bulb. Includes a standard lighter plug and 15 foot cord with easy hanger.