This is a development board, not a finished product. So we assume you have some basic electrical understanding when purchasing and using this product, however below are some key points you need to bear in mind when using this product.

• The amount of power required to run the controller and attached strip will vary GREATLY depending on the number of LEDs in the strip and it's operating voltage. e.g. for up to roughly 60 LEDs you can probably get away with powering the controller just from a higher end USB-C charger, but for more than this you may need to inject power from both ends of the strip to avoid voltage drop for longer lengths.
• If you run more than 100 about LEDs or you opt for a higher voltage strip, you will need to get a dedicated power supply. At this point you can power the strip via the included power tails (typically red and white wires separate to the 3 wired into the board) and then leave the USB-C port unplugged, because the board will power itself from the power to the strip, and will work for just about any voltage strip you choose (4-36v).