Meets Current USA and European Standards for LED Navigation Lights. Certified 2nm visibility. Polymer Top and base with clear frosted lens3/4" Aluminum tube poleStylish high-tech design with self contained LED module. The LED optics adjust based on pole mount anglesMeets Global Specs for: ABYC C-5, NMMA Type Accepted, EN/ISO 19009:2015, ABYC A-16 (2016), 1972 COLREGS, RCD 2013/53/EU, USCG 33 CFR - 2nmScrew Size: #81.28 Watts, 0.10 Amps