Integrated, LED technology produces 400+ lumens with exceptionally low power draw and long life. Marine bronze housing requires only a 3/4" thru-hull mounting hole yet presents a generous 2 3/8" diameter marine bronze bezel with Borofloat glass lens for outstanding durability and clarity. Shaft length of 6 5/8", complete with locking nut and sealing gland, is suitable for virtually all hull materials. Pre-wired with 2.0m of two-conductor marine wire. Two-year warranty