The LED light on the desk is provided to add a little bit of front lighting where you may be recording in the Pod.
Simply connect your device via USB-C, then on the inline remote on the light, press the power button.
There are several different whites (from warm to cool white) available by selecting the 'Mode" button. You can also adjust the brightness with the arrow keys on the remote.
Once you disconnect your device from USB-C , the light will automatically turn off.