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G4 Socket Adapters - Bayonet / Edison (AD-G4)

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  • G4 Socket Adapters - Bayonet / Edison (AD-G4)
  • G4 Socket Adapters - Bayonet / Edison (AD-G4)


Adapt any Bi-Pin G4 LED bulb to a bayonet or screw-type Edison E26 / E27 or Mini E14 screw-type socket. Bayonets and screw types bulbs are common in older boats and RVs. Insert the adapter into your existing socket and convert to any bi-pin style G4 LED bulb.

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.

12V or 24V use only.

Click our video below to see the unique swivel feature of our bayonet adapters:

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2 Reviews

  • 5
    Loved the complete Solution!

    Posted by Curtis on 11th Jan 2018

    I was talking with a fellow offshore cruiser about wanting a Red/White fixture for over the chart table. I was holding out because I really liked the current fixture and also having all my fixtures match. He excitedly showed me the MarineBeam Red/White bulb that worked off a single on/off switch. Amazing! The only problem is I have old fixtures that use the older bayonet style bulb, not the newer 2 pin G4 bulb. Turns out not a problem at all, MarineBeam sells the adapters!

    What a great solution. I was able to put Red/White in my 2 heads,, my cabin, the galley, over the dinette as well as over the chart table. I have been using them for a few months now and they are great. The only minor issue is they were crooked in the fixture, but my fancy glass diffuser on the fixtures made it not noticeable. I loved the solution so much when my cheaper Amazon LEDs started flickering I oredered some white only G4s from MarineBeam instead of using the spares I had on hand.

    Upon ordering the next batch of bulbs, I noticed a YouTube video on the Bayonet G4 adapter. I wondered what is so special about the adapter to warrant a video? I had to watch it to find out and was very pleasantly surprised! The bayonet swivels to make sure the G4 bulb faces downwards! I went in and readjusted all my current installations and love them even more!

  • 5
    Perfect for Hatteras owners

    Posted by Arnie on 14th Jan 2015

    Easy install and much brighter that I expected. Works perfect for the archway lights

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