It can be connected to locks, lights, fans, windows, curtains, motors, automobiles, elevator controls or other electronically controlled devices by AC85V-250V or DC12V.It can therefore unlock, turn off the lights, open or close the curtains remotely, etc. You can use the transmitter (remote control) to turn the receiver on and off anywhere within a reliable distance (500 meters).(Wireless RF signals can pass through walls, floors and doors). The operating mode can be changed by the user: it can be switched to instantaneous, switching and locking mode as needed. the wireless receiving controller with high privacy, stable performance and low power consumption, can skip a line or dial a switch code. Pair code learning: It can be used with any remote control with the same frequency, no need to lose the remote control again.(If you lose the remote control, simply buy a new one and pair it with the receiver).