This brand is well known for its commitment to quality and reliability as part of the Chamberlain family of openers. Their reputation comes in part due to the efficient and heavy-duty operation they provide and the innovative nature of their hardware. The majority of their motors are powerful AC motors that provide a step above the DC motor in terms of performance. This line of Garage Door Openers is an exceptional example of the performance you can expect from the Chamberlain line and was deliberately designed with heavy-duty operation in mind. If you have an extra-durable security door for your garage, this is the opener you’re going to want.