1. The output voltage is DC 110~2600V. You can turn the voltage adjustment button clockwise to make the voltage larger, and turn it counterclockwise to make the voltage smaller. 2. The output current is 0.25~3.4mAh. You can turn the voltage adjustment button clockwise to make the current larger, and turn it counterclockwise to make the current smaller. 3. When testing MOS tubes, transistors and Zener diodes, it is recommended to adjust the current to the minimum scale of 0.25mA. When testing LED backlight panels, it is recommended to adjust the current to the maximum scale of 3.4mAh. 4. Portable size: The small size of this tool is very convenient for daily use. You can carry it in a tool bag without taking up too much storage space. 5. Built-in 600 mAh large-capacity lithium battery for power supply, which can be in time through the Type-C interface. 6. Wide application: This tool can be widely used for maximum voltage capacity testing of MOS, transistors, IGBTs, diodes, Zener diodes, diode bridges, voltage verification of capacitors and varistors, LED backlight and light panel testing, etc. Product parameters: Battery capacity: 3.7V 600mAH Charging port: TYPE-C Input: 5V 1A Charging current: Max.550mA Output voltage: 120-2700V Output current: 0.2-3.8mA Applicable components: MOS tube/IGBT/transistor/diode/electrolytic capacitor/LED/MOV/unidirectional thyristor/rectifier bridge Test target: breakdown voltage value of electronic components Notice: 1. Do not use it to test high-voltage large electrolytic capacitors such as 450V/220UF. It is possible to test low voltage capacitors such as 2200UF/35V. 2. If there is no output voltage when pressing the red high-voltage start button, it is likely that the lithium battery voltage is lower than 3.1V, which cannot power the tester and needs to be in time. 3. Only when testing LEDs and Zener diodes, the output current can be adjusted to the maximum value. For testing other components, the output current can be adjusted to the minimum value to avoid damaging the components. Different batches may result in different product appearances, printed text, and colors, which do not affect usage. font color:B: blue Colour: White Material:plastic Package Contents: 1 x Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.