LED Rainbow - RGB LED PWM Controller Construction - Easy To Build

Step 12 Assembly Step 9: Optional DC Power Jack at P1

We can now move ahead and install an optional Power Jack at P1. This jack allows for a standard wall adapter to be used to power the LED Rainbow PCB. The hole pattern on the board is standard and can accommodate virtually any power jack you may have. If you have this component, you can now go ahead and install it at P1.