12-pack E-Simpo G23 to E27 adapter,2pin,G23 to E26/E27 Lamp base converter, Rohs,Z1008 12pcs/lot, Suit for G23, 2pin socket.2p is in parallel, not in cross(that is G24 2P in Cross), Need BYPASS OR REMOVE the ballast, otherwise, it doesn't light on. This is G23 Single Tab, NOT GX23 Which is double Tab, see link: https://www.amazon.com/dp/B00XVSK5WG 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!THE BALLAST IN YOUR FIXTURE MUST BE REMOVED OR BYPASSED FOR THESE ADAPTERS TO FUNCTION PROPERLY. CONSULT AN ELECTRICIAN IF YOU ARE UNSURE. DO NOT OPERATE A LED BULB WITH A BALLAST IN THE FIXTURE, DOING SO WILL LIKELY DAMAGE THE BULB. 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. Work for 2-Pin CFL with G23 Base: 5W,7W,9W & 11w Single Tube; and G23-2 Base:5w,7w,9w 11w Quad Tube