Two double-gang electrical boxes bolted together. One box contains the actual module, while the empty box is useful for making connections. The module contains a 3-screw terminal block for a wall switch (up, down, common), IRreceiver jack, RF receiver jack, and a user-serviceable 6.3A fuse. A spare fuse is included. There is a 6-wire pigtail for Hot, Neutral, Ground, Common, Up and Down.
Control One 115V Motor in One of 3 Ways: Low voltage Wall Switch RF (radio frequency) or IR (infrared). Works