E-Simpo G24d to E27 Adapter, 2P Light Socket Adapter, 21.8mm,G24 to E26/E27, GX24d to E27 Lamp Base Converter, Rohs.Need Bypass The Ballast! (60-Pack) - Amazon.com
GE Biax T 18W 830 2 Pin GX24d-2 Light Bulb Compact Fluorescent Lamp PLT CFL | eBay
LED PL Retrofit Lamp for 2 or 4 Pin CFL Bulbs - Replaces 26 Watt- G24d / GX24d & G24q / GX24q Base Lamps - Magnetic Ballast Compatible or Bypass, 3000K and 1000 Lumens