In order to respond more closely I separate times of lamp holder. The lamp makes solid impression with your LCD display provides all the information you need. Presumably, however, comes some one without the tech gadgetry from (and thus cheaper to buy). Need the lamp to 90% by seen on mountain bike to be, depending on the twilight / year with more or less power. The scattering of the light cone is a little spotty, and is likely to be problematic for dark night rides. 4/5 for the lamp
2 # mount
I do not know exactly what Trelock was thinking. The plastic belt (rubber can not be called that) is much too rigid to decent to have contact with the handlebars. Even with the supplied rubber not better. Because does not help with pliers to tighten. The grub screw plastic dissolves while driving each time. Have installed alternative to screw the bracket of the lamp. Keeps bomb "mountain" safety. (See Photo)
Moral of the story: Good lamp with a long maturity, lousy support and conditionally "low eight-compatible"