• Powerful 24V DC motor provides ultra-quiet operation, along with variable speed smooth start and smooth stop
• Easy wall-mount installation means no rails to hang
• Auto-force feature constantly monitors garage door system and adjusts forces to temperature fluctuations, floor height, and door track movement
• The Smart Garage Door Opener® lets you electronically program security codes from the Smart Control Panel® or the powerhead
• Enclosed gear case provides continuous lubrication and protection for longer life and smoother operation
• A 6-foot power cord makes connecting to a power source easier than ever
• New optional Alternate Power Source (580LM) is a safe, permanent option to power the 3800 when an outlet is not within 6 feet; UL approved
• Remote light delivers 200 watts of light with adjustable light time delay
• Meets all UL325 requirements

SAFETY & SECURITY FEATURES

• The Protector System® safety sensors project an invisible light beam across the garage door opening and automatically reverse the door if anything interrupts the beam while the door is going down
• Sensing technology will stop the door from closing if contact is made with a person or object
• Opener light turns on automatically when The Protector System's infrared beam is broken
• Security+® rolling code technology assures a new code is sent every time the remote control is used
• Manual release handle in case of power failure

WARRANTY

• Lifetime motor warranty 
• 5-year parts warranty