Dave Markman wrote an answer about NiteRider MiNewt Mini-USB Plus Bike Light on November 12, 2008
The NiteRider Minewt Mini USB Plus Is a great helmet mount light. For some double track and some less technical single track that is all you need for lights. As for area covered a safe bet would be 25-75 feet and that all depends on a couple variables. It a 110 lummens brighter than most of the old turbo cat lights.