After discovering GeoMan Gear was out of business (see earlier post) I looked around and found that the light I bought from them is basically a Magicshine light like this one:
http://magicshineusa.com/products/li...men-bike-light

The specs on mine are very similar. The battery will operate 180 minutes at the highest brightness setting. I like how the power button on the light changes color to show how much charge you have left, and the brightness and span of light thrown. Like I said earlier it is kind of heavy and you deal with a separate battery pack and cord. But it's a lot of light for the money and can be mounted on a helmet or handlebars.