KINGSO E26/E27 Solid Brass Industrial Light Socket Vintage Edison Pendant Lamp Copper Holder Without Switch This is electrifier medium base copper shell lamp holder For wire and E26/E27 screw light bulbs and lamps connected, power lighting, display fixtures Very Great for quality; Saves electricity-extends bulb life These lamp holders are ideal for bare bulb features with E26/E27 Edison Screw Bulbs Low, medium and high settings for your home's lamps