Abstract: A flush apparatus includes a control module, a solar cell and a rechargeable battery. The control module is used for controlling the flush apparatus to flush or not. The solar cell and the rechargeable battery are electrically connected to a power output terminal in parallel. The power output terminal is electrically connected to the control module for providing power to the control module.

Abstract: A power managing system includes a battery, a solar cell, a detecting circuit and a control module. The solar cell transforms a received light into a voltage and the battery is charged by the solar cell. The detecting circuit detects the voltage and correspondingly generates a detecting signal. The control module controls a pathway between the battery and the solar cell according to the detecting signal.

Abstract: A controlling device and a controlling system. The controlling device transmits controlling signals to an electronic device and receives operation statuses thereof through a power line. The controlling device includes a Human-Machine Interface (HMI) device for displaying the operation statuses of the electronic device. The controlling device includes a controller, an HMI device connected to the controller, a power supply for providing an electric power to the controller and the HMI device, and a power line network signal transmit/receive module connected to the controller.