100% Brand New & High Quality

• 1. Board size: 90*60MM
  2. Board thickness: 1.6mm
  3. Board material: international standard board, all pads are tin-plated, high-strength fireproof and anti-drop material, which can be disassembled repeatedly.
  4. The PCB board design is reasonable, and the commonly used SMD components are used.
  5. The left and right 3 columns of components are used to practice soldering, and each column has test points.
  6. The circuit in the middle circle is a water lamp circuit, which is composed of CD4017, NE555, and light-emitting diodes. It can work after the welding is correct.
  7. The back of the circuit is also used, and there is a ruler for easy measurement of components. There are examples of PCB wires to facilitate PCB design and use.
  8. Circuit working voltage 3~12V
  8. This kit contains all the components on the following photos.

  Number of components: 125
  Number of solder joints: 274