Features: 0-50 volts and 0-20 Amp outputs. Intelligently calculates output voltage and current into power and displays the value on its large screen.; decimal point automatic carry & LED 4 digits display of voltage function displays.current and powe; The keyboard can be locked to prevent misoperation. High quality circuit board made, and make it stable output.It's built-in cooling fan with thermo-sensor and TWO heat sinks used will keep the power supply cool,noise reduced and life prolonged.Perfect limit current protection, thermal protection, voltage overload protection, short-circuit protection. Suitable for the electronic maintenance, electrolyzation, electroplate, lamp test, aging testing, battery charge, laboratory, teching, and DIY tools. Safety is our priority. The built-in fan low arc noise & low ripple,The power supply is durable and compact. Productive work since the power supply comes multiple protection of Over-voltage, over-current, over-power, over-temperature, short-circuit powerful protection function. Package Includes: 1 Set Regualted Power Supply Specifications: Material: ABS Size: 79x43x38mm/3.11x1.69x1.49inch Color: Refer to the Picture note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you place order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!