What happens if a USB C is connected without up/down resistor?

I am working on an LED project (Infinite mirror) which I plan on using a USB C female connector to accept power to make it easy to get replacement cables if one gets lost. I plan on having the USB C wire spliced to the 5V on a ESP 8266 board and an LED strip.

From what I've read, USB A > C provides 5V and that's not a problem, but USB C can provide more and thus requires an up/down resistor to be connected between the board and the USB. If I don't have one connected, what happens if someone plugs up their USB C to C? Would the LED strip / board be damaged?