The Chamberlain RJO101 garage door opener is the top-of-the-line garage door opener. Redesign your garage into a multifunctional extension of your home. This model features a space saving, ultra-quiet, high-performance design with a powerful battery backup that will ensure you never get locked out of your garage again. Brilliant 1500 lumen lighting gives you visibility and shows off your garage like never before. The Automatic Garage Door Lock deadbolts the garage door every time it closes, for complete security.