Unique Bulbs (Pack of 2) F13T5/CW 13-Watt T5 Fluorescent Cool White 4100K Super Long Life - Amazon.com
13 Watt Bulbs
Philips 13-Watt Equivalent CFLNI (GX23) 2-Pin Light Bulb Cool White (4100K) (1-Pack) 146852 - The Home Depot
Feit Electric 13-Watt Equivalent PL CFLNI Twin Tube 2-Pin GX23 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K (1-Bulb) BPPL13/41/HDRP - The Home Depot
Feit Electric 13-Watt (60 W Equivalent) Spiral GU24 Pin Base Cool White (4100K) CFL Bulb at Lowes.com
OttLIte T13330 13-Watt HD OttLite Replacement Bulb, Type A - Fluorescent Tubes - Amazon.com
A19 13 Watt LED Bulb 100 to 240 VAC Non Dimmable - Household - LEDLight
LED Tubes – The Ultimate Guide to Replacing Fluorescent Tubes
UNITEDLUX 13 Watt CFL Light Bulb (60 Watt) Soft White 2700K 1040LM Spiral Bulb Medium Base Compact Fluorescent Bulb (2 Pack) - Amazon.com
Philips 13-Watt Equivalent CFLNI (GX23) 2-Pin Light Bulb Cool White (4100K) (1-Pack) 146852 - The Home Depot