Improved light-weight design provides up to two miles of 360 degree visibility for boats up to 39. 4 feet (12 meter). Operates at 3 watts @ 12VDC. Includes a two-pin locking collar pole. Use with light bases: 91020, 91022, 91024, 91026*, 91041, 91042, 91043, 911339, 911370, 911445, 911490 (* When locking collar is removed).