NE555 Welding Practice Board SMD Rotation SMD Rotation Flashing LED SMD Component Welding Practice Kit Electronic DIY Kit

Operating voltage Board size Board thickness Board material international standard sheet all tin pad high strength fire drop material can be repeated disassembly PCB board design is reasonable are commonly used in the SMD components The middle of the circular circuit for the water lamp circuit by the light-emitting diodes welding power can work The circuit is also used on the back a ruler to facilitate the measurement of components There are examples of PCB conductors to facilitate the use of PCB design Package includes set of rotating LED SMD component PCB board soldering practice kit