After welding, just connect electricity (3-12V) to see the effect. You can quickly judge the welding effect. The welding product is a beautiful water lamp circuit.
The back of the board with mm/Inch ruler, Easy to measure component
It’s DIY Kits, Blue Led. This is a perfect Soldering skills training materials for beginners
High quality PCB, has clearly marked the electronics components, even beginners can easily solder successfully.
