i choose this light because i wanted for my safety a powerful light I'm not disappointed it sends heavy or his pike especially when it is someone pointing worm drive people live slow its dazzled can be dangerous to the hard maximum battery 40 min max is 3 levels plus the stronb if you were in the winter on dark road you take the 300m voyer smoothly even in daylight on the way especially thinking to buy a light carrier screw handlebar its has a dir Normal support because the elastic blah sold with its fast to think about it stolen detach the battery if its a super scratch