The Sintesi 2000 electric chain actuator provides a 10 or 15-inch chain operator for bottom-hinged hopper windows. It features fast, quiet, and reliable operation. and allows for the use of two different stroke lengths. Direct connection to line voltage eliminates the need of a transformer. The Sintesi 2000, with its "dove-tail" sliding bracket, window quick-release, and removable power connector makes installation of the system and cleaning of the window a breeze!