Overview

The Perko 0200MABW01 is a 12V combination masthead and white all-round navigation light for sail or power-driven vessels under 20 meters (65.6 ft.) in length. Its upper section uses a 25-watt bulb and carries 3-mile masthead certification, while the lower 10-watt section carries 2-mile all-round certification.

This fixture makes sense when you need both functions in one housing instead of separate lights. The body is white polymer with clear frosted lenses, and the light carries a 360° visibility arc.

With an overall height of 8-5/8", a lens height of 2-3/4", and a 3-5/16" outside base diameter, it is easy to compare against an existing mounting spot before pulling fasteners or sealing new holes.

Key features

• Combination masthead and white all-round navigation light for sail or power-driven vessels under 20 meters (65.6 ft.)
• 12V fixture with bulbs included for both upper and lower sections
• 3-mile USCG-certified masthead section and 2-mile USCG-certified all-round section
• 360° visibility arc with clear frosted lenses
• White polymer housing with #10 screw mounting, 8-5/8" overall height, and 3-5/16" outside base diameter

Compatibility and fit

It fits 12V boats and uses #10 screw mounting, so it works well as a like-for-like replacement where mounting footprint and wiring matter just as much as the light itself. This is a practical option for owners keeping an incandescent navigation light setup in service and wanting one fixture that covers masthead and all-round white duties.

Check the mounting point for a clear light arc and enough separation from antennas, canvas, radar, or other hardware that can block visibility. The compact base helps on elevated mounting points where space is limited, as long as the required light placement for the vessel is maintained.

Installation and setup

The bulbs are included, so the main job is comparing the footprint, routing the 12V feed, and confirming that the existing switch and wiring arrangement matches the upper and lower lamp sections. The compact dimensions also help when you are working around nearby fittings or a tight mounting shelf.

This light is a sensible match for owners replacing an older combination light on a cruising sailboat or small powerboat, especially when they want to keep the existing style of incandescent navigation lighting without moving to a different size or layout.

Use on board

For coastal cruising, harbor approaches, and general night operation on boats under 20 meters, this fixture covers the basic need for a combined masthead and all-round white light in one housing. It suits owners who want familiar service parts, straightforward installation dimensions, and a traditional navigation light setup.