Dual-Contact LED Bulb – BA15D (12V/24V) is a compact LED replacement bulb designed for compatible low-voltage marine light fittings that use a double-contact BA15D bayonet base with parallel side pins. It is suitable for boat owners, yacht operators, marine electricians, and maintenance teams looking to replace an existing compatible bulb in a navigation-light fitting, cabin light, utility light, signal light, or other onboard lamp holder. The bulb uses a 15.20 mm diameter BA15D base with two bottom electrical contacts and parallel locking pins, which twist into a matching BA15D socket. BA15D bases are designed to lock securely into compatible bayonet holders, so it is important to check the existing bulb base, side-pin position, voltage, and available fitting space before ordering.

This BA15D LED bulb contains 63 x 3014 LEDs and provides an effective light output of 180 lumens. Its cylindrical LED arrangement places light sources around the body and at the top, supporting illumination from multiple sides within a suitable lamp housing. With an overall size of approximately 50.47 mm long x 15.20 mm in diameter, it is a compact option for fittings where bulb length and internal clearance matter. The listed double-contact, parallel-pin configuration makes this model distinct from non-parallel or offset-pin bayonet bulb types. Always compare the removed bulb and socket pattern carefully, as a visually similar bulb may use a different base arrangement.

The supplied specification identifies this product for 12VDC / 24VDC marine electrical systems. Where 12V and 24V options are offered, select the version that matches the vessel’s lighting circuit and existing lamp requirement. Do not install a bulb until the voltage requirement of the fixture has been confirmed. The product information also lists a 63 x “3014” LED layout, 180LM effective lumen output, and double-contact parallel pins. A comparable catalogue listing for this bulb format identifies the same 63 x 3014 LED arrangement, 180LM output, 50.47 mm x 15.20 mm dimensions, and double-contact parallel-pin style.

For marine lighting maintenance, this ba15d led bulb can be considered when replacing compatible boat light bulbs in fixtures such as navigation-light housings, anchor-light assemblies, stern-light fittings, cabin lamps, chart-table lights, and utility lamps. Actual suitability depends on the lamp holder, fixture design, lens colour, required navigation-light performance, and the vessel’s electrical system. This product is a replacement bulb only; it does not convert a non-compliant fixture into a certified navigation light. For regulated navigation-light use, verify that the complete light fitting, lens, bulb type, visibility requirement, and installation meet the applicable rules for the vessel and operating area.

The compact body makes this marine light bulb practical for maintenance stock on recreational boats, fishing boats, workboats, yachts, tenders, and other low-voltage vessels that use compatible BA15D bulb holders. Its two-contact base is intended for fixtures designed for a double-contact bulb, rather than a single-contact BA15S base. The parallel locking pins should also match the existing socket; do not force the bulb into a holder with offset or non-parallel pin locations. Before installation, switch off the lighting circuit, allow the existing bulb to cool, remove it carefully, compare the base and dimensions, then fit the replacement with a gentle push-and-twist motion in a compatible bayonet socket.

Key Features:

• Dual-contact BA15D LED bulb with parallel locking pins
• Suitable for compatible 12VDC / 24VDC marine lighting systems
• 63 x “3014” LED configuration
• Effective light output: 180LM
• Compact cylindrical bulb profile
• Size: 50.47 mm length x 15.20 mm diameter
• Double-bottom-contact bayonet base
• Designed for compatible boat light bulbs and marine light fittings
• Useful replacement option for compatible navigation, cabin, utility, and signal-light housings
• Check base type, pin position, voltage, and fixture clearance before installation

Applications / Suitable For:

• Compatible boat navigation light bulbs
• BA15D bulb replacement in suitable marine light fixtures
• Boat cabin lights and interior utility lamps
• Anchor-light, stern-light, and signal-light fixtures where the fitting specifically accepts a parallel-pin BA15D bulb
• Yacht, fishing boat, workboat, tender, and recreational-vessel maintenance
• Low-voltage marine lighting systems using a compatible double-contact bayonet socket
• Marine electrical spare-parts inventory for compatible BA15D LED fittings

FAQs:

Q: What is a BA15D bulb?
A: BA15D is a 15 mm double-contact bayonet bulb base with two bottom electrical contacts and two parallel side locking pins.

Q: Can I use this bulb in any boat light?
A: No. Use it only in a compatible BA15D double-contact, parallel-pin socket with the correct voltage and enough internal fixture space.

Q: Is this bulb suitable for navigation lights?
A: It may be used in compatible navigation-light fixtures, but the complete fitting must meet the required navigation-light rules and performance standards.

Q: What are the bulb dimensions?
A: The listed size is 50.47 mm long x 15.20 mm in diameter.