Used as a device for training in electricity distribution control in housing and buildings. Input power : single-phase, three-wire AC 220V-+10persen 50Hz/60Hz Power supply control : Automatic air switch on/off power supply, with overcurrent protection, leakage protection devices Output power : DC24V/3A, with limiting current type short-circuit soft protection and self-recovery function Part list: Multifunctional Smart Panel 4-way switch output module 10A 2-way smart curtain controller Single-port bus switch Logic Controller Twelve in one sensor Power Modules Dimming Module Electric curtains Software User Manual