Light Socket, KINGSO E26/ E27 Solid Brass Industrial Light Socket Metal Shell Vintage Edison Pendant lamp copper holder With Knob (Antique Brass) Advantagescopper vintage style light bulb sockets, durable, heatless and long-lasting. Safety locking screw in base for secure fitting. This is electrifier medium base copper shell lamp holder. Money & Energy Saving High quality Pack of 10 units, Enjoy the preferential package price. Easy Installationscrew off the base to access the 2 wire connections inside. Perfect for restoring old lamps and lights or homemade lighting fixtures. Without on/off knob, the socket is turned on and off by wall switch, in-line switch, or by unplugging the fixture. Peace of MindWith hard paper in the socket inner, seismic and impact resistance (Cord is not included). WarrantyKINGSO offers 12 months warranty for all the products after the date of original purchase.