Royal Designs 3 Way Lamp Socket for LED Bulbs Metal Knob
JACKYLED 3 in 1 E26 Light Socket Splitter Adapter Converter for Standard LED Bulbs 360 Degree Adjustable 180 Degree Bendable Max Watt 180w - Amazon.com
YANSUN 50-Watt/100-Watt/150-Watt Equivalent A21 3-Way LED Light Bulb in Soft White (12-Pack) H-XP03502E26D-12 - The Home Depot
Brass Lamp Socket with 3 Way Turn Knob Switch | Snake Head Vintage
BRK® PIR725 3-Way Light Bulb Socket, 50/100 W Lamp, 120 VAC, Mogul Fluorescent/Incandescent Lamp | State Electric
3 in 1 E26 Light Socket Splitter Adapter, Standard Base 3 Way Bulb Socket Holder | eBay