Boat Festoon LED Lamps

Festoon LED replacement lamps for marine interior lighting. These cylindrical lamps with metal end caps fit directly into existing festoon holders found in boat cabin lights, chart lights, and companionway fixtures. Available in standard marine sizes (31mm, 36mm, 39mm, 42mm) for easy replacement of traditional festoon bulbs. Options include warm or cool white for different onboard applications. Designed for 12V and 24V marine electrical systems with moisture-resistant construction.

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12 LED 37mm Navigation Lamp Festoon
£4.99 Add to basket
12 LED 42mm Navigation Lamp Festoon
£4.99 Add to basket
12 LED 43mm Barrel End Lamp Festoon
£4.99 Add to basket
3 LED 37mm Slim Festoon
£3.99 Select options This product has multiple variants. The options may be chosen on the product page
3 LED 42mm Slim Festoon
£3.99 Select options This product has multiple variants. The options may be chosen on the product page
30 LED 42mm Navigation Lamp Festoon
£8.99 Select options This product has multiple variants. The options may be chosen on the product page
30 LED Navigation Lamp Aqua Signal
£8.99 Select options This product has multiple variants. The options may be chosen on the product page
6 LED 37mm Festoon
£4.29 Select options This product has multiple variants. The options may be chosen on the product page
6 LED 42mm Festoon
£4.29 Select options This product has multiple variants. The options may be chosen on the product page
9 LED 42mm Festoon
£4.79 Select options This product has multiple variants. The options may be chosen on the product page

Frequently Asked Questions

Are marine festoon LEDs different from automotive?

Marine versions feature better corrosion resistance, wider voltage tolerance, and conformal coating for moisture protection.

What causes festoon LEDs to work intermittently?

Corroded holders, loose spring contacts, or voltage drops. Clean contacts with electrical cleaner, check spring tension.

Can I use festoon LEDs in navigation lights?

Only if specifically approved for navigation use. Most festoons suit cabin/courtesy lights only – nav lights need certification.

12 LED 37mm Navigation Lamp Festoon

12 LED 42mm Navigation Lamp Festoon

12 LED 43mm Barrel End Lamp Festoon

3 LED 37mm Slim Festoon

3 LED 42mm Slim Festoon

30 LED 42mm Navigation Lamp Festoon

30 LED Navigation Lamp Aqua Signal

6 LED 37mm Festoon

6 LED 42mm Festoon

9 LED 42mm Festoon

Frequently Asked Questions