... lamp holder base Our programme• Porcelain sockets for Oven lampsGlow lamps (E14, E26/E27, E39/E40)• Steatite sockets for Low-voltage halogen ... , GX5.3, GU5.3, G6.35) High-voltage halogen lamps (G8.5, R7s, B15d) • Steatite bases ... E26/E27, E39/E40)• Steatite sockets for Low-voltage halogen lamps (G4, GX5.3, GU5.3, G6.35 ... ) High-voltage halogen lamps (G8.5, R7s, B15d) • Steatite bases ...