MarineBeam

Bayonet BA15d BA15s 1141 1142 Replacement LED Bulb 12V 24V

$ 18.00 USD

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Shipping calculated at checkout.

SKU:BA-15-SM-WW-Double

Marine LED replacement lighting. Match the exact base or pin layout, system voltage, light color, and available lens clearance before ordering.

See fit checks and full product specifications

Contact Double (BA15d) Single (BA15s) Bi-Pin G4 Wedge Festone SV8.5

Color Warm White Cool White Red Green

Ships in 1–5 business days
30-day returns
Advice from real cruisers

Our 18-LED Bayonet Bulb is available in a single-contact or double-contact base that is perfect for many types of 360 degree lamps, sconce lamps, cockpit lamps, navigation lamps, etc. It can replace 1141/1142/BA15s/BA15d bulbs (choose your base type below).

Because of this bulb’s exceptional output, it is a great replacement for 10W to 25W bulbs. This is the brightest lamp available in a bayonet base. You won't be disappointed.

It now featured the latest power LEDs, and is available in Warm White, Cool White, Red and Green.

NOTE: If using this bulb in navigation lights, use Cool White behind clear lenses, Warm White behind bi-color or tri-color lenses, Red behind Red lenses, and Green behind Green lenses. This will give you the maximum intensity (and transmissivity) for these various lenses. Also please double check the base type you have using the chart above before ordering.

Specifications

Base: BA15d (double contact 15mm Bayonet or BA15s (single contact 15mm Bayonet)
Beam Angle: 360 degrees
Input Voltage: 8VDC – 30VDC
Lumens: 225
Wattage: 4.5W
Dimensions: Dia. 28mm x 40mm (+socket)

2 Year Warranty

Technical Specifications

Base / socket	BA15D
Voltage	12 V / 24 V DC (multi-volt)
Power	10 W
Color	Warm White

Multi-volt LED electronics are polarity-protected and built for the marine 12/24 V DC environment. Not sure this is the right base or fixture for your boat? Contact us with a photo of your old bulb or fixture and we'll confirm fit.

Shipping & lead times

We're a small team of boaters and we pack orders within 1–5 business days (no weekend or holiday packing). You'll get an email with tracking as soon as a label goes on your box.

Specialty items — fire extinguishers (dangerous goods) and low-stock or built-to-order gear — can take longer; the product description will say so. On a tight timeline or meeting your boat somewhere specific? Contact us and we’ll work out the fastest way to get gear to you.

International orders ship DDU: local duties, taxes, and customs fees are the buyer’s responsibility. Full details in our shipping policy.

Returns & refunds

30-day returns from the date of purchase. Items must be unused, in the original packaging with all cables and accessories, with proof of purchase.

Contact us before shipping anything back — we’ll send the return form that must accompany your return. Fire extinguisher and lithium battery items carry a $15 administrative fee on returns.

Read the full refund policy.

Ask a cruiser before you buy

Everyone here is a current or past cruiser — we’ve docked short-handed, re-rigged at anchor, and chased 12V gremlins too. Not sure this is the right fit for your boat? Send us your question before you order and we’ll give you a straight answer.

Bayonet BA15d BA15s 1141 1142 Replacement LED Bulb 12V 24V $ 18.00

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Check fit before ordering

Base and pins: match the socket, contact count, pin position, orientation, and spacing to the lamp being replaced.
Electrical fit: verify the DC voltage range, polarity requirements, and compatibility with existing dimmers.
Physical clearance: compare the full bulb diameter, height, pin length, lens, and reflector clearance.
Light output: choose the intended color, temperature, beam pattern, and navigation or cabin-light use.

Product specifications and details