Wie befestige ich die Teamgee Head LED-Leuchte am Board?

Hi, the LED headlights are out of stock currently. Sorry about that.(2022/8/19)

is it compatible with the H20T?

Yes, but they are sold out now. (2021/12/29)

How do fix it to the board?

Thank you for your quesiton. You can strap the light onto the board, a manual comes with the light as well.

How can I apply it on H9?

Thank you for your question.   You can strap on the light and there’s a manual attached within purchase.