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 for protection, thermal for protection, voltage overload for protection, short-circuit for 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 for protection of Over-voltage, over-current, over-power, over-temperature, short-circuit powerful for protection function. Specifications: Material: ABS Size: 79x43x38mm/3.11x1.69x1.49inch Color: Refer to the Picture Package Includes: 1 Set Regualted Power Supply 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!