Spec:

Item Type: USB Load Tester
Material: Printed Circuit Board
Working Voltage: DC 5V (USB power supply)
Function: A USB discharge load tester designed according to Ohm's law (voltage/resistance value = output current), through the two switches to control load different power resistance values, and obtain 3 kinds of currents, respectively 1A, 2A and 3A. Onboard corresponding different resistance indicator lights and power indicator lights are very clear. Simple to use, you can test the power bank and mobile power charger.
Applicable Scenarios: For electronic equipment, power bank, mobile power, charger.

Package List:
2 x USB Load Tester

How To Use:
1. The USB plug is plugged into the 5V output interface. Because of the resistance value and the maximum power limit of the resistor, it cannot be connected to the quick charging interface 5V;
2. After power on, the power indicator D1 will light up;
3. Switch S1 to the ON gear, lights up, 4R7 resistance starts to work, the current is about 1A;
4. is turned to ON gear, D3 lights up, 2R5 resistance starts to work, the current is about 2A;
5. If S1 and are switched to the ON gear at the same time, the two resistors work and the current is about 3A.