Description
Product description 1.Operating voltage: 3 - 12 V. 2.Board size: 89 x 58 mm/3.5 x 2.2 in. 3.Board thickness: 1.6 mm/0.06in. 4.Board material: international standard sheet, all tin pad, high strength fire drop material, can be repeated disassembly. 5.PCB board design is reasonable, are commonly used in the SMD components. 6.The middle of the circular circuit for the water lamp circuit, by the CD4017, NE555, light-emitting diodes, welding power can work. 7.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. 8.Number of components: 125 Number of solder joints: 274 Sample soldering time: 35 minutes Package includes: 1 Set of Rotating LED SMD Component PCB Board Soldering Practice Kit
