Later Philips 35w SOX-PSG lamp
Philips 55w SOX-PSG lamp
Philips SOX-E-PSG lamps have a Green Cap
Philips 26w SOX-E-PSG lamp
Philips 36w SOX-E-PSG lamp
Sylvania 35w SLP (SOX) Lamp
Thorn 140w SLI-H lamp