MarineBeam
G4 Socket Adapters Bayonet & Edison
G4 Socket Adapters Bayonet & Edison
SKU:AD-G4-BA15 D
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 specificationsCouldn't load pickup availability
- Ships in 1–5 business days
- 30-day returns
- Advice from real cruisers
These amazing little Socket Adapters are great to adapt to any Bi-Pin G4 LED bulb with a bayonet or screw-type Edison E26 / E27 or Mini E14 screw-type socket to allow you to use our high-efficiency LEDs to replace 5, 10, or 15-watt Halogen or Xenon bulbs.
Bayonet style, along with screw types of bulbs are common in older boats and RVs. With these adapters you can just insert the adapter into the existing socket to convert into any bi-pin G4 LED bulb.
Our Swiveling bayonets come in both standard types: BA15D (double contact base) and BA15S (single contact base). E26 Edison - same screw base as used in household lamps.
Base Type:
**G4 to BA15S (single contact), **G4 to BA15D (double contact), **G4 to E26 Standard Edison Screw Base, **G4 to E14 Small Edison Screw Base
Check out this video to see the unique swivel feature of our Bayonet adapters:
Shipping & lead times
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
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
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.
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
These amazing little Socket Adapters are great to adapt to any Bi-Pin G4 LED bulb with a bayonet or screw-type Edison E26 / E27 or Mini E14 screw-type socket to allow you to use our high-efficiency LEDs to replace 5, 10, or 15-watt Halogen or Xenon bulbs.
Bayonet style, along with screw types of bulbs are common in older boats and RVs. With these adapters you can just insert the adapter into the existing socket to convert into any bi-pin G4 LED bulb.
Our Swiveling bayonets come in both standard types: BA15D (double contact base) and BA15S (single contact base). E26 Edison - same screw base as used in household lamps.
Base Type:
**G4 to BA15S (single contact), **G4 to BA15D (double contact), **G4 to E26 Standard Edison Screw Base, **G4 to E14 Small Edison Screw Base
Check out this video to see the unique swivel feature of our Bayonet adapters: