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Chamberlain 0.5-HP Power Drive Chain Garage Door Opener

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1/2 HP motor with industrial-strength, rugged chain drive
Delivers 100 watts of light with adjustable light time delay
The protector system safety sensors with rapid-snap brackets 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

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1/2 HP motor with industrial-strength, rugged chain drive
Delivers 100 watts of light with adjustable light time delay
The protector system safety sensors with rapid-snap brackets 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
Opener lights turn on automatically when the protector system's infrared beam is broken
PosiLock theft protection assures that once the door is closed it stays locked
Quick-and-easy-to-install 5-piece rail system fits most garages with 7' high garage doors. Extension kits are required for garage doors that are 8' (model 7708CB) or 10' (7710CB) in height