A tricked-out LED tester ... and division, and displays the needed resistor. So simple. And as he demonstrates in the video below, it does double-duty as a diode tester. This is a great beginner ...

The evolution of LED technology has led to the development of several types, primarily inorganic LEDs, OLEDs, and QLEDs. Inorganic LEDs are known for their durability and energy efficiency, making ...