High Measurement Accuracy: Kaiweets 30V 10A DC power supply has a high resolution of 0.01V and 0.01A. The 4 LED digital display provides a more accurate readout for the voltage and current value, even visible easily in low-light conditions.Constant Voltage & Constant Current Operation Mode: The easy-to-use rotary knob, coarse and fine could adjust the data of voltage and current digit by digit, which allows you to set the desired output resolution quickly and easily in 30V 10A.5V/2A USB Interface & The design with an Elastic Handle: Kaiweets adjustable power supply could charge the device which you want to repair. It also features a large display that makes it easy and accurate to read voltages and currents. In addition, the design is portable and lightweight, which could help you to carry it easily.Multiple Protections: Kaiweets bench power supply provides overvoltage, overcurrent, overtemperature, overload, and short-circuit to protect your device, prolonging the service life of the dc power supply. Due to the special period, the shipping cost is increasing, this product will be charged an additional shipping cost of $15. Thank you for your support and understanding. Rlated Blog: How To Use a DC Power Supply