(2pcs) YiLighting - UL-listed E26/E27 to E26/E27 Extender - Standard Medium Socket E26/E27 to E26/E27 Lamp Bulb Socket Extender Extension Adapter Used for LED and CFL lights, Not for Incandescent light bulbs Extends blub base by 1.5 inches, blub length by 1.25 inches Suitable for all voltages, suggest 75 watts maximum. High temperature resistant, erosion resistant and anti-flaming Pull up the inner copper sheet for better contact with bulb's base