Welcome to the store! 1、POWER SCALE: When testing MOS tubes, transistors, and diodes, adjust the current to the smallest scale of 0.22mA, when testing LED backlight panels, adjust it to the maximum of 3.8mAh. 2、EASY OPERATION: The voltage tester has a compact structure, with knob adjustment, convenient operation, and has a wide range of applications. 3、WIDE APPLICATION RANGE: Widely used for testing the maximum voltage capacity of MOS, triode, IGBT, and diode, voltage verification of capacitor and Varistor, LED backlight and lamp test, etc. 4、BUILT-IN BATTERY: The voltage tester has a built-in 660mAh large-capacity lithium-ion battery, can be charged in time via the Type C interface. 5、DIGITAL PANEL: The voltage tester has a digital display panel, which is clear and intuitive, and can be used during the day, at night, or in other dimly lit environments. Item Type: Voltage Tester Material: ABS Output Voltage: 120V-2700V Output Current: 0.2-3.8mA Battery: 1 x 660mAh 3.7V Rechargeable Lithium Battery (Built-in Battery) Charging Interface: Type C 1 x Voltage Tester Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!