... or efficient lightbulb use . We supply bayonet lamp cap ( Lampholder ring , bulb parts ,Lamp fittings) for bulb or efficient lightbulb use ... brass or stainless steel and so on .lamp socket screw shell,light fitting,lamp fitting Style: E14,E27,E12,E26,E17 ... ,with glass iinterior.2) Finishes: Nickel plating3) metal material: iron, aluminium,brass and copper selectable;4) Main application: Flash lighting ...