Thanks, everyone, for the very nice and encouraging comments. I was - and continue to be - glad to have reviewed this light, as I found - and still find - it to be so VERY USEFUL.
Several of the posts on other threads seem to criticize the light for its flood. This frustrates me a little, as these comments seem to ignore the fact that nothing can be everything to everyone. A narrow-focus light is more useful and most approproate in some situations, and this is when you need to have one. (I do have a variety of"throwier" lights, up to a Mag85 for extreme nightime illumination in 4x4 off-road travel and impromptu exploration of caves and mines.)
What the H-50 Zebralight excells at is giving a broad field of even light out to at least 20-30 feet, with diminishing illumination beyond that point. It is also well made, light, and gives incredibly long battery life on lithium L91s.
No one light can do everything, but an awful lot of life's chores are close in to one's hands (regulated by the length of our arms?) and in this zone the Zebralight is more useful to me than any of the other 6 models of headlamps I have used extensively. The even wall of light vs. the tunnel of more focused beams is a vast improvement to me. On the other hand, this is not a throw-monster, and we could not use it for PAP smears and vaginal biopsies, at which for example a PT Apex served extremely well.
This is a different tool than a "throwier" light, just like a socket wrench is different from a crescent wrench. Depending on what you do, you may well need both; I think it is artificial to try to reduce the choice to a binary "buy-one-or-the-other" decision.
John