Genie 2022-TC ChainLift 800 1/2+ DC Chain Garage Door Opener with 2 3-Button Remotes Wall Console and Safe-T-Beams Model No. 2022-2TX DC motor is a lighter weight providing quiet, smooth operation & soft start & soft stop Provides 1-touch limit setting meaning fewer trips up the ladder Commercial grade chain drive system is durable & provides a longer, more reliable life Comprehensive Safe-T-Beam system meets or exceeds all UL, state, federal & CSA regulations & incorporates an auto reversing system & diagnostics The DC motor allows for quiet, smooth operation with soft starts and soft stops Lightweight unit and electronic push button programming make installation and set up fast and easy Two bulb light system for improved illumination (bulb maximum 60 watts each, not included) Dual pinion gear chain drive system provides longer, more reliable life Genie Intellicode rolling code technology prevents unauthorized persons from opening your garage door by automatically changing the access code every time you use it