Interior switch with integrated lighting. Non-polarized installation. Compatible with all CB models. Mounting screws included. Wired. With the CHAMBERLAIN 75REV interior switch, you can open and close your garage door at the push of a button. The integrated lighting ensures that the switch is easily visible even at night. The wall switch is suitable for use in combination with all CB models. Installation is very straightforward, as it does not need to be polarized. The necessary mounting screws are already included in the package.