Features:Display Mode: LED digital display, 4-digit digital voltage, current and power display.Multiple Protection: over-voltage, over-current, over-power and over-temperature protectionEfficient Heat Dissipation: With fan vent and intelligent temperature control fan, used for internal heat dissipation of power supply, intelligent temperature control adjustment, energy saving and electricity saving.Data Storage and Recall: 3 sets of shortcut parameter storage/recall functions, which are convenient and effective.Easy to Use: Constant voltage (CV) and constant current (CC) modes can be automatically switched, with status indicator. Encoder adjustment, the specified number of digits can be adjusted accurately.Support a Variety of Communication Modes: The product provides users with up to three communication modes, namely USB(optional), RS232(optional) and RS485(optional), to realize remote control.Caution:US Plug Input Voltage: 100-120VEU/UK Plug Input Voltage: 200-240V