G4 Adapters - Converts G4 into Bayonets or Screw-Type

These adapters are used to adapt the G4 or MR11 bi-pin type LED bulbs to either a Bayonet or Screw type socket.

Bayonets and screw type bulbs are common in older boats and RVs. Just insert the adapter into your existing socket and plug in your bi-pin style G4 or MR11 LED bulb.

The screw type adapters (shown at left)are the common household E26 Edison type that you use at home.

The Bayonets (top photo) come in two types: BA15D (double contact base) and BA15S (single contact base). See our Bulb Glossary for more details of Bayonet base types.