A red (or pink?[]) tinted light helps. I like red lenses because they don't interrupt my night vision, and they make the light seem dimmer to predators.

Some lights also need a shade or a hood added. The bulb and the housing to be set back inside of the housing, otherwise they will cast a beam that is too wide, and will light up yourself, your friends, and your equipment if you aren't careful.

I'm repairing the cord in one of my lights now. I'm working on hooking up a potentiometer so I can control the light output. In areas where visibilty is good, my current light works pretty good. Get into areas with a lot of cover, and I would like to be able to dim it down some since the action is closer.