1.Name:Screw light base 2.Item No.:JM-507 3.Inserted Metal:by customer' ... s choice 4.competitive price 5.fast delivery Screw light base JM-507 Detail picture: Feature of our company's Lamp ... holder, wall lamp holder, porcelain lampholder, ceramic lamp base,lamp cap,plastic lampholder base,bakelite and plastic lampholder, E27&B22 Lampholder and ...