If you're in the market for a new flashlight, and you cant find one with the features you like, you should definitely take a look at the HexBright Flex. This flashlight is the most customizable and upgradeable hand held light available. First off the CREE XM-L U2 bulb is one of the most advanced available on the market and has a max output of 500 lumens. The battery on this light is rechargeable via your computer USB or a wall socket and is encased in aircraft grade aluminum. Now for the really cool parts, this light can be completely broken down all the way to the circuit board, this way if any part of this light breaks it can be repaired by component. This also will allow you to upgrade the bulbs or bezels as technology advances in the years to come. Last but certainly not least, is the open source software for the light. This allows you to set up the on off switch to have either 1 mode "on" or 100 modes of your choosing with any timed on/off, or blinking sequence you want. hit the link for all the details.