Perko Double Ended Festoon Bulbs, Nickel Plated Brass, 2pk

Overview

This Perko double-ended festoon bulb pair is a replacement incandescent bulb set for compatible Perko marine lights, including many incandescent navigation light fixtures. The range covers 12V and 24V applications, with double-ended festoon construction for fixtures that use spring-contact bulb holders rather than screw or bayonet bases.

These bulbs are used when restoring light output in existing fixtures without changing the housing, lens, wiring, or mounting location. Several versions use a 3/8 inch bulb diameter and 1-1/8 inch length, while the larger 12V 15W version uses a 9/16 inch diameter and 1-11/16 inch length. Matching the voltage, wattage, amperage, and physical bulb size to the original lamp is important for correct fit and safe operation on board.

Key features

• Double-ended festoon format for compatible marine light sockets that hold the bulb at both ends.
• Available for 12V and 24V boat electrical systems, depending on the selected variant.
• Replacement bulb format suited to Perko incandescent navigation lights and other compatible Perko fixtures.
• Variant-specific amperage helps confirm the correct load for the vessel’s lighting circuit.
• Sold as a pair, giving two matching bulbs for service replacement or onboard spares.

Variants

This Perko bulb range is offered in several electrical and size configurations so the replacement can be matched to the fixture and vessel voltage.

The variants differ by voltage, wattage, amperage, and in some cases bulb size. Confirm the markings on the old bulb or the light fixture service information before replacing it, especially when moving between 12V and 24V systems or between the 1-1/8 inch and 1-11/16 inch lengths.

• 0070DP0CLR: 12V, 10W, 0.74A. This version fits applications that call for the 3/8 inch diameter, 1-11/16 inch length festoon bulb in a 12V circuit.
• 0071DP0CLR: 12V, 10W, 0.80A. This version suits compatible 12V fixtures that use the shorter 3/8 inch diameter, 1-1/8 inch length festoon bulb.
• 0070DP1CLR: 12V, 15W, 0.97A. This higher wattage 12V version uses a larger 9/16 inch diameter and 1-11/16 inch length, so both electrical load and bulb clearance should be checked before installation.
• 0072DP1CLR: 24V, 10W, 0.40A. This version is for compatible 24V Perko lighting applications and uses the 3/8 inch diameter, 1-1/8 inch length festoon size.

Installation and fit

Before installing, switch off the light circuit and let the old bulb cool. Remove the lens or cover as required by the fixture, release the old festoon bulb from the spring contacts, and install the replacement without forcing the glass into the holder. A bulb that is too long, too wide, or rated for the wrong voltage can create fit issues or overload the fixture.

After installation, check that the bulb sits straight between the contacts and that the lens seals back into place as intended. On deck, masthead, bow, and stern light locations, a clean lens and a proper seal matter because salt, spray, and vibration can shorten bulb life or affect visibility.

Use cases on board

These bulbs are a practical match for owners maintaining Perko incandescent lighting rather than converting the fixture to another light source. They are useful as routine spares for coastal cruising, fishing boats, sailboats, and workboats that still use compatible Perko navigation or utility light housings.

What’s included

• Two double-ended festoon bulbs