Legrand - Pass & Seymour 8101CC10 Medium Base Incandescent porcelain Lamp Holder, Keyless, Single Circuit, 2-Piece Ring with Leads 1 3/8-Inch to 1 1/2-Inch Hole 660W, 250V, Incandescent Medium base porcelain Lamp holder, keyless, single Circuit, 2 piece ring with leads, 1 3/8to 1 1/2Hole, bulk Adds Extra shine to your product Manufactured in China Medium Base Porcelain Lamp holder Single Circuit 2 piece Ring with Leads