Nice idea.
Price isn't bad.

With the rubber band attachment with my current light, I just tap it forward to aim downward to "dim". Then I pull it back up when I want distance again.

I know many people don't like bright lights, but I'd rather see a pedestrian or biker without lights before I run over them than not. A brief lapse of attention and one is 50 feet down the bike path. While a dim light might be sufficient to see obstacles, it is only if one always has the ideal look-ahead.

My goal is to aim the center of the light near the horizon. The problem is that it bleeds upwards too much. Specialized, and perhaps other brands have designed bright lights to direct the majority fo the beam forward, but below eye level.