A quick test ride to show how bright the light is in the E bike mode on high.  Sorry this is not an MTB trail… My GoPro is not yet mounted, so I had to hold my phone with one hand as I rode with the other hand. I will try to make time to record a video on an MTB trail later. That said, this light is 2X as bright as my Bontrager Ion RT Pro, which was plenty bright for MTB when combined with a helmet light.

Product link:
https://magicshine.com/products/mj-90...