Features:

• Satin black finish aluminum turn knob socket
• 3-Way interior designed for 3-way light bulbs
• Medium base (E-26)
• Bottom cap is tapped 1/8 IP, which measures 3/8"
• Bottom cap also has a set screw for a more secure fit
• Rated 250W/250V

Metal 3-way (for 3-way light bulbs) lamp socket with brass plated shell for standard size bulbs. Medium Base (E-26) light socket with 1/8 IPS socket cap w/set screw. 250W-250V. Medium base (E26) is sometimes referred to as Edison or standard base. U.L. and CSA Listed.