The Draper 121058 LVC-III and 2 LVC-S Low Voltage Control Module and 2 Low Voltage Control Switches is for single station low voltage control. The LVC-III Low Voltage Control Module is used to control one 115V motor in one of three ways: Low voltage wall switch/dry contact, RF (radio frequency) or IR (infrared). The Control Module is typically used with Draper Projector Lifts and Screens so that when a projector or receiver is turned on, it sends a signal to also control the lift or sceen. The LVC-S Low Voltage Control Switch is used to control the LVC-III. The Control Switch has three individual Single Pole, Single Throw contacts (On/Off) for momentary action. The cover plate is white plastic and fits into a standard single-gang box. Screw terminals on the back connect to Down, Common, and Up. Also available with just 1 Control Switch.