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G24Q/ GX24Q to BC B22 4 PIN Adaptor Socket Converter Lamp Holder UK SELLER | eBay
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Feit Electric 42-Watt PL CFLNI Triple Tube 4-Pin Plug-in GX24Q-4 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K(10-Pack) PLT42E/41/10 - The Home Depot
G24 to E27 E26 4-Pin LED Light Sockets Adapter, Light Bulb Socket, Bulb Base Adapter, Converters Lamp Holder (Pack of 5) - Amazon.com
LH0920 GX24q-4, 42w 4 pin CFL lamp holder/socket with two hole vertical mounting
Satco S8365 9W Single Tube 4-Pin 2G7 Plug-In base 4100K fluorescent bu – BulbAmerica
Leviton Lampholder For G24Q And Gx24Q Lamp Bases 4-Pin 26725-403 - The Home Depot
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Light Holder Professional Socket Adapter Durable 4 Pin 250 V White 2G11 Tube Lamp Base Home 2 A Easy Install Connector - AliExpress