I-Light Adattatore portalampada da spina E40 a presa G12 - Svetila.com
LH0964 Converts an E39 mogul base lamp holder/socket to a G12 bipin lamp holder/socket
4pcs HID G12 to E26/E27 Light Socket Adapter Halogen G12 Lamp Base to Standard Medium E26 E27 Lamp Holder Converter: Amazon.com: Tools & Home Improvement
E27 to G12 Lamp Holder Converter Metal Halide Lamp G12 Base to LED E27 Lampholder 5PCS|Lamp Holder Converters| - AliExpress
Hot sales promotion E27 to G12 LED Lamp Adapter G12 TO e27 Socket Base led G12 lamp holder Converter adapter|g12 to e27|adapter g12g12 lamp holder - AliExpress
10w 12w 108pcs 2835 Leds 100-227v G12 Lamp Holder G12 Corn Light Led G12 - Buy G12 Led Lamp,G12 Led Bulb,G12 Led Product on Alibaba.com
G12 Socket Base Holder Connector For Ceramic Led Halogen Bulb Lamp Light - Portable Lighting Accessories - AliExpress
G12, GX12-1, GX10, G8.5, GX8.5 Discharge lamp holders for MBI, HQI Metal Halide & Sodium Lamps