I have the Turbo Cat lighting rig as pictured and had designed a helmet light using a 7v Makita battery stowed in the Camelbak. For a while, I was riding the Austin Barton Creek Greenbelt at night. But one night, I was at, what I call the Moon Rocks near a cliff and all of a sudden, I heard something or someone break out into a full run at me. As I was already on the move, I quickly laid down on the pedals and got out of there. I decided at that point I didn’t need to be riding at night alone. At the point that I started fearing for safety, I shyed away from the deep woods night rides. But I believe there is safety in numbers. Also, the battery on the Turbo Cat weighs almost as much as the bike. But the beams are great.. Riding the woods at night is awesome..