USB Color Screen Charging Tester High Accurancy Numerical Control Voltage Buck-and-Boost Powersupply Voltmeter and Ammeter

Features:
Using 1.44in LCD display, multi-directional viewing angle conversion, 160 wide viewing angle, high brightness, long working time, so you can enjoy bright and delicate colors, natural display srceen from any angle.
The product integrates 2 systems, and the system is switched by hardware switches, which is convenient and quick.
The screen supports four-way rotation.
High accurancy and high sensitivity.
Short press the rotary encoder button, select the corresponding position, the corresponding number will be reversed, and use the rotary encoder to switch the theme background color and foreground color.
The product has constant current function, which can charge all kinds of small rechargeable batteries within 0.6V~30V within 10~20W.
The product has constant current function, which can directly drive 0.6-30V, 0-15W LED lamp.
This product can realize the stepless dimming of LED by adjusting the constant current value (between 0-working current) without flicker.