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.