DC 12V CD4017 + NE555 Flash Light Explosion-flashing LED Suite Self DIY Learning Electronic Kit Strobe Module Production Design _x000D_ _x000D_ _x000D_ _x000D_ Features: 1. This kit consists of a control board and three light boards, the colors are red, blue, white 2. The circuit consists of a NE555 circuit, a CD4017 circuit and a LED light circuit 3. Master the principle of this kit, you can make running billboards or decorative ambient lighting 4. After power on, the red and blue light panels have each flashed twice, and then the white light panels flashing once, so alternating cycles 5. Easy to install and use: simple design, suitable for DIY enthusiasts, with clear instructions and simple installation process _x000D_ Parameter: Model: TJ-56-715 Supply Voltage: DC 12V Product Dimension: Control board: 60.7*37mm LED light board: 35*26mm _x000D_ Package include: DIY Kit*1 _x000D_ _x000D_