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10-Pack) Philips 458430 10.5PL-C/T LED/26V-4000 IF 4P 10.5-Watt LED Plug & Play Lamp Replacement for 4-Pin CFL Light Bulb, Vertical Mount (4000K) - - Amazon.com
HERO-LED GX24-40S-4P-DW Rotatable PL-C Lamp GX24Q 4-Pin LED CFL/Compact Fluorescent Lamp, 8W, 18W Equal, Daylight White 5000K (Remove/Bypass The Ballast) - - Amazon.com
Philips 26W Equivalent Soft White PL-C/T 4-Pin Vertical Orientation LED Tube Light Bulb - Varns and Hoover Hardware
LED-Alternative für PL-C und Osram D/E 18 W und 26 W | BeleuchtungDirekt
10-Pack) Philips 458422 10.5PL-C/T LED/26V-3500 IF 4P 10.5-Watt LED Plug & Play Lamp Replacement for 4-Pin CFL Light Bulb, Vertical Mount (3500K) - - Amazon.com
Philips 458380 - LED 4-Pin-Base CFL Replacement | LightBulbs.com
Philips 532432 - LED 4-Pin-Base CFL Replacement | LightBulbs.com