This 5mm LED Kit is a collection of standard through-hole LEDs designed for general-purpose electronic applications and prototyping. The kit includes four common colors—red, yellow, blue, and green—with 5 pieces of each, totaling 20 LEDs. Each LED operates with typical forward voltage and current characteristics suitable for microcontroller and breadboard circuits. Built for consistent light output and reliable performance, these LEDs are compatible with a wide range of development platforms. Ideal for circuit design, educational experiments, and visual indication systems.