Electronic DIY Light Kits, Led DIY Kits Welding Practice Board 73 LED Flash Red Yellow PCB Circuit Suite Training

• The LSD-73 explosion light kit includes 33 red lights, 40 yellow lights, 33 yellow lights, 40 red lights.
• The LED light goes from inside to outside to form an explosion lamp.
• The flow speed of the LEDs is adjustable to meet a variety of needs.
• High quality PCBs, large pads and even beginners can easily be soldered successfully.
• Quality assurance: To provide you with the highest quality assurance, please contact us if you are not satisfied with the product.

Installation steps: 1. Install RES: 200 ohm resistor to install on a R2-R10 console, 1K ohms resistor installed on a R1, R2-R10 console. 10K ohm resistor installed on the R21 base 2. Install a red LED on D1. 3.Left to right, red, yellow, red, yellow to install the LED. The anode of the LED corresponds to the square pad. 4.Red-yellow-red-yellow continues to install the light. 5. Complete installation of all LEDs. 6. Install, adjustable resistance cap, electrolytic capacitor and DC power plug. 7.Install the S9013 triode on the Q1-Q10 position pads. Built-in circuit 8.Install. Please pay attention to the direction of the pins 9.Attach the red line of the battery box to the VDC. The black line is GND welded. Check the direction of the capacitor board Please note: 1. Please allow for a 1-2 cm error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated in the same way, the colour of the item shown in the photos may be slightly different from the actual item. Please take the real one as standard.