This is a fantastic set for all the folks building full sized Back To The Future Flux Capacitor replicas. All of the wiring to the board has been done for you, making the set straight forward to install.
You'll find the following items in your light kit pack:
x1 Pre-soldered circuirt board.
x10 Blocks of three warm white leds, fully wired ready to be connected to the circuit board.
x1 LED layout template (this is the layout that I use myself when I make these - you can use your own layout as long as its within a similar dimension of A4 size.
Now you're ready to install the set: