The LiftMaster 4A1344 Garage Door Opener Light Socket is a direct replacement part compatible with most LiftMaster, Sears Craftsman, Raynor, and Chamberlain garage door opener models. Measuring 4.3" by 2.6" by 1.9", this socket is easy to install—just pop the old socket out of your opener, slide the two lead wires into the new socket’s tabs (matching wire sizes to tab sizes), and snap it into place. Once installed, insert your light bulb and reinstall the cover to restore proper lighting functionality to your garage door system.