DYSMIO 13 Watt CFL Light Bulbs 2 Pin GX23 Base 3000K Soft White 13W High Output 800 Lumens Single Tube Compact Fluorescent Light Bulbs Plug-in 4 Pack - Amazon.com
4x 13 watt Energy Saving Lamp CFL 4 pin 13W Cool White 840 G24q-1 Double turn BELL : Amazon.co.uk: Lighting
Feit Electric 13-Watt Equivalent PL Quad Tube CFLNI 4-Pin Plugin G24Q-1 Base CFL Replacement LED Light Bulb, Cool White 4100K (1-Bulb) BPPLD13E841LEDG2HDRP - The Home Depot
Feit Electric 13W/18W/26W Equivalent PL Horizontal 4-Pin Universal Base G24Q/GX24Q-1/-2/-3 CCT Select(2700K/3500K/4100K)LED Light Bulb PL26A/H/CCT/LED/HDRP - The Home Depot
GE 13W 4 Pin G24q1 Neutral White Double Twin Tube CFL Bulb | F13DBX/835/ECO4P (4-Pin) | Bulbs.com
Feit Electric 13W/18W/26W Equivalent PL Horizontal 4-Pin Universal Base G24Q/GX24Q-1/-2/-3 with CCT Select LED Light Bulb (4-Pack) PL26AHCCT/LED/HDRP/4 - The Home Depot