Chamberlain Whisper Drive 1/2 HP Belt Drive Garage Door Opener: * Ultra-quiet operation featuring the Motor Vibration Isolation System (MVIS) * Quick-install rail system * Delivers 200W of light with adjustable light time delay * HomeLink compatible * Includes two 3-button remote controls * Sensing technology stops the door from closing if contact is made * Opener lights turn on automatically when the infrared beam is broken * Security+ anti-burglary technology assures a new code is sent every time the remote control is used * PosiLock theft protection * Manual release handle * Lifetime motor warranty; 10-year belt warranty * Model# WD832KLD