Mr16 Mr11 Gu5.3 G4 Halogen Led Lamp Bulbs Holder Base Socket Ceramic Adapter Wire Connector - Lamp Bases - AliExpress
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MR16 Round Lamp Socket with Male Molux Plug | Step 1 Dezigns
MR16 Round Lamp Socket with Male Molux Plug | Step 1 Dezigns
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200 MR16 GU5.3 Ceramic Socket, Halogen, LED Light Bulb, Lamp Holder Fitting Base 800000073055 | eBay
Heavy Duty MR16 Spot Light Fixtures That Installs In Seconds. - 12VMonster Lighting