The NPS-W series is a three-window display mini DC power supply that simultaneously displays voltage, current, and power. This product improves the shortcomings of traditional linear power supplies that are bulky, heavy, and inefficient. Features: LED 3 digits display of voltage, current and power, high precision with single channel output. Voltage stabilization, current limiting, simple operation feature the DC power supply. Over voltage protection(OVP), over current protection(OCP) with over temperature protection. Continuously adjustable output of voltage and current with fine regulating and coarse regulating. Automatic conversion of voltage stabilizing and current stabilizing, adopt current limiting protection mode, and any external service state will not be damaged. With replaceable fuse for safe use, convenient to change the fuse. Applied in production line test, electrical maintenance, aging products, battery charging, laboratories scientific research and teaching and all other need DC regulated power supply. Specifications: Model: NPS1203W Output Voltage: 0-120V Output Current: 0-3A Output Power: 360W WORKING ENVIRONMENT: Input Voltage: AC 230V/115V +/- 10%; 50Hz/60Hz Working Temperature: 0~40 celsius ; Relative Humidity: less than 80%RH Storage Temperature: -10~70 celsius ; Relative Humidity: less than 70%RH CONSTANT VOLTAGE CV: Voltage Stability: 0.1% +/- 3mV Load Stability: 0.2% +/- 3mV Ripple Voltage: =0.5% Vp-p 0 to rated voltage continuously adjustable CONSTANT VOLTAGE CC: Current Stability: 0.1% +/- 3mA Load Stability: 0.2% +/- 3mA Ripple Current: =0.5% Vp-p Recovery Time: =500 microsecond Temperature Coefficient: =100ppm/ celsius 0 to rated current continuously adjustable DISPLAY: Three-window digital tube display: voltage, current, power Display Accuracy: 0.5% +/- digits Display Resolution: voltage 0.1V; current 0.01A; power 0.1W/1W SIZE AND WEIGHT: Item Size: Approx. 230 * 130 * 70mm / 9.06 * 5.12 * 2.76in Item Weight: 1372g / 48.39oz Package Weight: 1550g / 54.69oz Package Size: Approx. 29 * 18 * 10.5cm / 11.42 * 7.09 * 4.14in Package List: 1 * DC Power Supply 1 * Power Cord 1 * Alligator Clip Line 1 * User Manual (English)