2nm navigation light LED replacement bulbs. Specially designed as direct replacements for most of the incandescent navigation lights available including Aqua Signal (Series 40, 41, 42, 50, 55), Attwood, Hella, Perko and more. Consumes only 1W. A great way to reduce energy consumption aboard. Satisfies all USCG requirements for brightness, 2nm distance and arc for vessels less than 50m (165') in length.