E-Simpo 15pcs GX23 to E26 Lamp Base Adapter, GX23 to E26/e27 Light Socket Converter, GX23-2 to e26 bulb holder adapter. Double Tab.2P in Parallel (15-Pack) 15pcs/lot,Suit for 2P CFL Gx23,GX23-2 Light Socket,Please make sure your socket is for GX23, NOT G23. GX23 and G23 both are with 2P in Parallel,BUT GX23 with Double Tab, G23 with Single Tab. Flame Retardant PBT, Phosphor Bronze.Suit for GX23 socket,Physically change the contact, don't change voltage. If you don't know how to remove or don't plan to ask an electrician to remove the ballast, please DO NOT BUY! Works with LED / Halogen / CFL light bulb lamps. Popular CFL with Gx23 base: MASTER PL-C 13W, PL-C 13W, PL-S 13W, but some of these lamps are with G24d, So do check carefully your CFL base before you order. All pin-based CFL, like GX24Q G24 GX23 G23 are lamp-ballast separated, but all screw-in E26 E27 are lamp-ballast integrated. ballast is a must to start a high voltage(600V-1500V 1ms) to light up the CFL, but it is dangerous for LED Lamp. Because LED Lamp are built with LEDs and Driver which is transforming the 100-240V AC to DC for LEDs. So the LED Driver input should be 100V-240V or 85-265V, so 600-1500V will be too high, and easily destroy the led lamp. Works for 2-Pin CFL with GX23 Base: 13w Single Tube; and GX23-2 Base:13w Quad Tube