The LiftMaster 8500W model is manufactured by Chamberlain Group. This model optimizes garage ceiling space overhead with is siding installation. If you want an extra storage space up above, have an oversized garage door, or even a cathedral ceiling, the 8500W LiftMaster model, a residential Jackshaft-type opener, is the perfectly engineered solution to fit your specific garage door opener requirements. Meets all UL325 requirements.

• It mounts easily on the wall (right or left side) beside the garage door, and comes with a remote 200-watt light that can be positioned anywhere in the garage.
• The powerful 24v DC motor allows for ultra-quiet operation, as well as a smooth start and finish of the door, with adjustable speed.
• Fully equipped with must-have features including built-in Wi-Fi® for smartphone control, MyQ® Remote LED light which can be installed anywhere in the garage, Integrated Battery Backup and the Automatic Garage Door Lock
• Drive system: Jackshaft type
• Remote Lighting System: A 1500 lumens (200 watts) LED light system that you install where necessary and that plugs directly into a standard electrical outlet.
• Specially designed for garages and unique applications that don’t allow for a traditional trolley-type garage door opener, such as garages with very low, cathedral or obstructed ceiling.
• Ultra-quiet 24V DC motor performance.
• Integrated battery backup ensures access even when the power's out.
• For sectional doors only, up to 14 feet (4.2 m) high or 180 square feet (16.7 m2), 850 lbs (385,5 kg).