Mini Mount Plug-In Type Base(1049)Chrome Plated Brass Insert and Waterproof Snap-On CoverBlack Plastic BasePigtail LeadsCap Type Chrome# of Pins 3O.D. Base Dims 1-15/16Fits Figs. 1401 1441 and 1461 Series All-Round Pole Lights and 1614 Series Bi-Color Pole Lights Product : PERKO MINI MOUNT PLUG IN BASE 3-PIN CHROME INSERT Manufacturer : PERKO Manufacturer Part No : 10493B0DPC UPC : 085226351556