Module usage tutorial:

Function switching: When your power output reaches 1A, switch to 1A range for testing; when your power output is 2A or above, switch to 2A range for testing.Judgment criteria: plug into the USB output port of the tested USB power supply/mobile power supply, when 1A is working, the green light is on. When switching to 2A work, the red light is on.

Precautions:

1. When the load is working, the winding resistance will generate a very high temperature due to the large current. Therefore, during use and within a short period of time after use, the human body must not touch the winding resistance to avoid Got burned! Do not allow flammable objects to touch the tester to avoid fire! In short, be highly vigilant during use!2. Taking into account the particularity of the winding resistor, a little white smoke and peculiar smell will appear after the first use of electricity for a period of time. This is because the outer paint still contains a very small amount of water. The lacquer is baked at high temperature to produce peculiar smell, which disappears completely after a period of use. This phenomenon will inevitably occur and is a normal situation. Don't worry about the load tester being damaged, please rest assured to use it.