1、LED digital display, 4 digits display of voltage, and current. 2、Auto switching mode between CV and CC, indicator light prompt. 3、Over voltage, over current, over power, over temperature protection. 4、Shortcut parameter storage/call function. 5、Communication port: RS232 to realize the remote control. 6、Intelligent cooling fan with energy saving. 7、Encoder adjustment, the specified numbers can be adjusted accurately. This series of adjustable DC stabilized power supply is a single output DC stabilized power supply with four digits LED digital display. It can simultaneously display voltage, current; Constant voltage (CV), constant current(CC)mode automatic switching, voltage and current can be continuously adjusted; Using advanced switching power control technology and components, high efficiency, lightweight, energy saving and environmental protection. Features: LED digital display, 4 digits display of voltage, and current. Auto switching mode between CV and CC, indicator light prompt. Over voltage, over current, over power, over temperature protection. Shortcut parameter storage/call function. Communication port: RS232 to realize the remote control. Intelligent cooling fan with energy saving. Encoder adjustment, the specified numbers can be adjusted accurately. Caution: US Plug Input Voltage: 100-120V EU/UK Plug Input Voltage: 200-240V Specifications: Plug: EU / US / UK (Optional) Model: ETP3003A Material: Plastic + Galvanized Sheet Output Voltage: 0~15V, 0~15V, 0~30V, 0~30V, 0~30V, 0~60V, 0~60V Output Current: 0~3A, 0~6A, 0~3A, 0~5A, 0~10A, 0~3A, 0~5A Output Power: 45W, 90W, 90W, 150W, 300W, 180W, 300W Steady State: Voltage stability: ≤0.1%±3mV Load stability: ≤0.1%±3mA Steady Flow State: Current stability: ≤0.1%±3mV Load stability: ≤0.1%±3mA Display Accuracy: Voltage: 0.5%±3 bits Current: 0.5%±3 bits Ripple and Noise: VPP ≤1% Display Resolution: Voltage: up to 10mV Current: up to 1mA Power: up to 10mW Display Method: 4-bit red LED Nixie tube, 0.40 inch Power Input: AC 220V±10%/50Hz or AC 110V±10%/60Hz (Users need to explain when purchasing) Operating Environment: Indoor use, altitude: ≤2000m, temperature: 5~40℃, humidity: 10~85%RH Storage Environment: Temperature: -20~80℃, humidity: ≤80%RH Item Size: 190 * 70 * 130mm / 7.48 * 2.75 * 5.11in Item Weight: 995g / 2.19lb Package Weight: 1329g / 2.93lb Package Size: 26 * 13.5 * 18cm / 10.23 * 5.31 * 7.08in Package List: 1 * DC Regulated Power Supply 1 * Power Cable 1 * Alligator Clip Cable 1 * User Manual (English) 1 * DC Regulated Power Supply 1 * Power Cable 1 * Alligator Clip Cable 1 * User Manual (English)