Pairing/Activating/Turning on Chuwi HiPen H6

I recently purchased a Chuwi Surpad that includes a Chuwi HiPen H6. Now my question: is there a way to pair or activate or turn on the Chuwi HiPen H6? I does have an LED to indicate whether the pen is turned on but there’s no “power-on” button or anything. Whatever I do I can’t get the LED to turn on.