Meet Speednite: a bike lighting system that you can control with head movement. It is a bicycle stem with integrated tiltable headlight and left/right laser indicators that you can control with head movement thanks to a motion sensor attached to your helmet.
The headlight has a max vertical movement of 130 degrees. It can be configured from the app. Its 800-lumen light helps you see clearly at night. With laser direction indicators, you can let others know where you are going at night.