Lights for tunnels... ??

I tried my little PlanetBike LED headlight in a tunnel on the Bizz Johnson Trail (came with a nice rear flasher I wanted). A dim patch of the roadbed just ahead was visible. Vertigo started to set in. I concentrated on the dim Light at the End of the Tunnel ahead and went slow.

Obviously time to retool as I have more rail to trail tunnels on the summer schedule and one is a mile long - not like that shortie on the Bizz. The black pit of that tunnel should be extensive. Flashlight on a bike mount seems smart. They have really improved the LEDs
.
Who makes a mount for a helmet? I was wondering how to apply one of my many LED headlights to the helmet.

Opinion seems divided between Rominsen and P7.

Your thoughts?