Metal Shell Medium Base Incandescent Vintage Light Socket Lamp Holder with Removable Dimmer Knob, Great For Industrial Vintage DIY Projects (Gold Dimmable) Dimmable for low or high usage UL listed metal shell lamp holder with E26 basic bulb base (Bulb is not included) You can create any kind of lamp by using this unique vintage style light socket. With hard paper in the socket inner, seismic and impact resistance. Safety locking screw in base for secure fitting. Also includes socket fixing top part.