For what it's worth, I have a Cygolite Streak (350, I think). It seems to be just like the Metro but a little less expensive and smaller and with a smaller battery and thus shorter battery life. The Metro has been popular, as it's quite practical. I don't need a battery headlight often, so this is good for me. The mount is a mechanical hinge with a knob for tightening it well. This is the kind of mount I like when I want a light with easy-on-easy-off ability.