DEWENWILS Light Sensor Socket for Light Fixtures, Automatic Dusk to Dawn Light Bulb Sockets, Compatible with Incandescent/CFL/LED/Halogen Bulbs, 2 Pack - - Amazon.com
Magic&shell Halogen Bulb 10PCS G9 T4 230V 40W Bi-Pin Base Warm White Halogen Light Bulbs - - Amazon.com
uxcell E27 to Dual E27 Adapter LED Light Socket E27 to 2 E27 Converter Bulb Base Splitter Lamp Holder - - Amazon.com
DGZZI MR16 Socket 10PCS Halogen Lamp Ceramic Wire Connector Base Socket Holder Adapter for G4, G6.35, GY6.35, GX5.3, GU5.3, MR16, GZ4 MR11 Bi-Pin Base - - Amazon.com
ODETOJOY G9 Light Bulb Socket Ceramic Lamp Base Holder Connector Led Halogen Light Lamp Bulb Holder Base with Cable Lead (1): Amazon.com: Tools & Home Improvement