Magicshine. My buddies and I ride hard in Colorado at night on not easy trails. We put 1 on our helmets and feel totally confident. Theee things are relatively cheap and have lasted for Years. Get the extensions cord for it that extends it, so you can put the battery in your pack, and the helmet attachment, and you’re set. You can also get a 2nd a put on your handlebars and you’d essentially be in daylight. 10/10.

https://www.amazon.com/dp/B084WYHJHR?ref=ppx_pop_mob_ap_share