You are welcome.

What brand and capacity batteries are using? What setting are you using and run time are you experiencing with these batteries?

The standard recommendation that I have read states that if you only have one light then you should put it on the bars. I wholeheartedly disagree. After following this advice and then putting my only light on my helmet, I prefer it on the helmet. I want to see where I am looking, not where my handlebars are pointed. The light does no good shining in front of my bike when I am looking into a turn. I want to see what is in the turn like I can in the daylight.