Philips Master 11W PL-S 11W/840 2P Cool White, 2 Pin Single Tube, 10000 Hours, 11 W : Amazon.co.uk: Lighting
Pack of 4) 13-Watt Single Tube 2 Pin GX23 (See Photos) Base - 3500K Neutral White 35K CFL Light Bulb - Replacement for Sylvania 20335/21137 CF13DS/835- Philips 146845 PL-S 13W/835 GE 97569F13BX/835 - - Amazon.com
Philips Master PL-S 11w/865/2P Fluorescent Non-Integrated Lamp (Cool Day Light) - Pack of 25 : Amazon.in: Home & Kitchen
Osram 239477 - Dulux S 11W/840 (CF11DS/840) Single Tube 2 Pin Base Compact Fluorescent Light Bulb - - Amazon.com
Pack of 4) 13 Watt Single Tube 2 Pin GX23 Base - 5000K Bright White 50K - CFL Light Bulb - Replacement for Sylvania 21135 CF13DS/850- Philips 146878 PL-S 13W/850 and GE 97572 F13BX/850 - - Amazon.com
Replacement for Philips Pl-s 13w/827/2p Light Bulb by Technical Precision - 13w Compact Fluorescent Light Bulb with GX23 2 Pin Base - Plug in Single Tube CFL T4 - 7.5 Inch - 1 Pack
Replacement for Philips Pl-s 11w/840/4p (4-pin) Light Bulb by Technical Precision - - Amazon.com