The Full 2way Power Relay Controller can control various relay devices such as electromagnetic switches, power type, and control type relays. The module can be configured with two sets of four-channel mutually exclusive or four sets of two-channel mutually exclusive controllers, facilitating the control of electric skylights, curtains, projector screens, driveway barriers, roller shutters, theater screens, and other places. It meets the functional requirements of mutual control for the on/off/stop and up/down/stop functions of electric motors. Additionally, the module can operate directly with Full-2way remote switches without the need for CPU host control. It is equipped with an authorization lock function and indicator lights for circuit switch status, enhancing safety and visibility during use. Switches or dimming control buttons on the controller panel facilitate on-site operation and testing, and the automatic timer-off function increases operational convenience and energy efficiency. The control module can operate independently offline, supporting independent testing and control of each circuit loop, enabling flexible on-site management. Additionally, it provides multiple redundancy options to ensure stable system operation, meeting high reliability requirements.