EATON 940ABD-SP-L 660-Watt Electrolier Medium Base Metal Shell Lamp holder Push Through Switch, Brass Dipped Aluminum This is electrifier medium base metal shell lamp holder It is a one circuit push through switch Push thru caps threaded 0.125-inch, 27 I.P.S. fit standard lamp stems Available in brass dipped aluminum color Measures 1-1/4-Inch length by 1-2/5-Inch width by 2-1/3-height