Meets CE and USCG requirements for 2NM visibility for sail or powerboats under 66'. Meets ABYC A-16 requirements. Meets NMMA Certification Procedure. Clear lens.12V DC - 8 CP lamp included. Pre-drilled with three countersunk holes to accommodate #4 screws. 2-3/8" OD base x 1-5/8" projection height. Housing is chrome plated brass with black plastic base.