RiPTiDE wrote a review of Black Diamond Polar Star Headlamp on December 1, 2004
I am pleased with the Polar Star. It's very basic and easy to operate. I'm a part of a special unit and we do a lot of rock climbing and winter survival training. The detachable battery pack is a plus. The lamp functions well overall, but lacks the luxuries of other lamps that have red filters and more LEDs. Nevertheless, the halogen light is very bright. For the price, however, this is a good lamp: comfortable, easy to operate, and reliable.