These shock-proof, non-filament 12 volt LED fixtures will probably never need a bulb replacement.
Direct replacement for the SeaDog #400180
Stamped 304 stainless steel body
Dimensions: 7-3/4"L x 2-5/16"W x 2-11/16"D
USCG approved
See our entry on Compliance Issues for Navigation Lights for installation tips
Sold by the pair

Fits Catalina sailboats with flush side lights.