Red & green navigation lights have a stainless steel recessed housing with a rubber gasket and colored lens. When not turned on they are identical to the naked eye. Look close with a magnifying lens and you will see the green one is labeled 101 and the red one is 151, These are well made and really bright.
Measure 7-3/4" length x 2-1/4" width. The 12 volt, 3 x nature white LED "5050" 0.5w,meets USCG specifications for boats under 39'.
The brackets are SS and can flex slightly based on the curve of the boat (they need to be mounted as close as possible parallel with the bait center line)
The fully encapsulated sealed design makes it waterproof greatly, a good replacement for the old bow lights on your boats
Led beam angle: 120 degrees, wattage: 1w (green)/ 1w (red), visibility: 1 Nautical Miles .