Technical Precision Replacement for Osram Sylvania Dulux S 13w/27k Light Bulb 13W Compact Fluorescent Bulb
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
Sylvania 21135 CF13DS/850/ECO - ADLSupply.com
4 Pack of Sylvania 20335 13-watt T4 Compact Fluorescent Bulb DULUX S CF13DS/835 | eBay
13W CFL Bulb Replacement for Osram Sylvania Dulux S 13w/41/827 by Technical Precision - T4
Replacement for Sylvania DULUX S 13W/827 LED by Technical Precision - Amazon.com