E12-E27 Lamp Cap(Lamp Holder or Lamp base), 1).Product specifications:E12,E14,E27, 2). ... Surface treatment:nickel plating Product:Lamp holder, Lamp Cap, Lamp base ,Lamp Accessory ( E-12 E-14 ... bases for electric lamps.the products are made of Aluminium,iron,brass and ceramics.We can make mold according to your ...