Don't let a power outage lock you out of your garage. Our Premium Whisper Drive Plus belt drive opener has 3/4 horsepower strength and EverCharge Standby Power System. Get optimal performance no matter what climate you live in with our Power Drive 1/2 HP screw drive garage door opener. It is specially engineered to run smoothly and quietly in extreme temperatures, so it won't freeze in cold weather. It also has a self-lubricating, maintenance-free rail system.