This is truly a super bright light however the battery does not last nearly as long as it says it does. It is supposed to last 5 hours when using it continuously on the high power. I have fully charged the light according to the directions, 25 hours before the first use and 12 hors for a full charge for each successive use. The light only lasted 3.5 hours on a full charge and after 2 hours the light had faded to half the original brightness and continually got dimmer till it shut off at 3.5 hours. This is not the convenience I had hoped for. 12 hours is a very long time to charge to only get 1-2 hours of bright light and another 2 hours of dim and dimmer light. The performance also seems to be getting worse with each new charging, shorter and shorter full power. I would not recommend this light.