The fully sealed and compact size of this light is designed for installation on a wakeboard tower, radar arch, hard top, poling platform, tuna tower, or other fixed structure. Direct LED replacement for Attwood's incandescent 5940 series. Proprietary optic design draws only 1.8 watts at 12V DC. Rated for 50,000 hours of use. For boats up to 39.4' in length. Ten-year warranty.