How to Change the LED Brightness on Performance Box Touch
The brightness of the LEDs on Performance Box Touch can be adjusted by pressing the Settings button at the bottom left of the screen, and using the Forward arrow or swiping left to navigate to the General Settings menu.
The LED brightness has 5 settings, 1 is the dimmest and 5 is the brightest (this is extremely bright!). You can also turn the LEDs off. Tap the button to cycle through the available options. The LEDs will preview the brightness level.
You can read more about the LED behaviour here.