2 Pack LED Flashing Heart Shape Soldering Training Kit for Electronic Project Soldering for Teaching and Creative Gifts (Red)

Adjustable LED Flash Frequency: Equipped with 22 red LEDs and potentiometer, this kit allows you to adjust the flash frequency, creating a dynamic and personalized lighting effect. Additional LEDs are included in the package to ensure you can finish your project even if errors occur during soldering. Specially designed for electronics beginners, this kit helps you learn welding techniques, understand mechanical structures and master basic electronic skills. It is a practical project that brings the joy of DIY to life. The heart shaped LED kit is a unique and meaningful gift for your loved ones. Bright and beautiful, it serves as a charming room decoration and a warm gift for children, parents or loved ones. The circuit board is clearly marked with labels, and detailed instructions on circuit principles are provided, making the assembly process simple and enjoyable. This kit does not include power supply. Please prepare a DC 4-6V power source or battery beforehand.