Originally Posted by
hamster
I'm surprised that no one mentioned this, but I think that the rear of your helmet is a very bad place to mount Hotshot. It is so directional that it has to be mounted just exactly right or else it is wasted. Even when it's mounted on the bike, you have to tighten the screw on the mount very tightly, because, if it's not tight, the light can shift one or two notches because of vibration and that will render it useless.
Now that you mentioned it that is a good point. That thought hadn't occurred to me but after thinking about it it makes sense. Due to the spot like beam of the Hotshot it would not make a good helmet light, you would want a broad (flood) beam type of for the helmet so it can be seen from wider angles due to the head not being in a fixed position all the time. I use my old Cygolite LD-600 for my helmet light and it does have a broader beam pattern that can be seen from very wide angles, but I put that light on the helmet without thinking about it's beam pattern suitability on the helmet.