"I think a lot of it has to do with how much you are into lights too. Just from reading this thread I had no idea how much there is to analyze... nor do I really care. It's obviously exciting for some people, and that's fine. For me it just isn't. I love to geek out on a lot of different things, but, for me, flashlights just ain't one of them. My main criteria is does it turn on and do what I want it to do... easily. And do I get a decent amount of output for the extra weight justification. The Vizz hits all of those for me."
My sentiments exactly, Marc. This is the first time I have ever gotten into a headlamp thread, and I have learned a lot from those who do geek out on them. My thanks to Greg, BG.
Delmar, and other knowledgeable contributors for a free education.
@ Delmar: The comments on candlepowerforums.com and the sublink to flashlightuniversity.com were generally positive on the VIZZ. For me, it now boils down to how long the Maxbrite LED will maintain a useful beam on unregulated current or, more practically since I rarely use a high beam in the field, the Ultrabrite LED's. If I can get 6 or more hours of, say, 30 meters throw out of the Ultrabrites, I will be a happy camper. One thing is now clear to me; PT is engaging in deceptive marketing, and REI has drunk the kool aid. In my ignorance of the fine points of electronics, I thought the VIZZ specs were based on regulated circuitry. Worse come to worse, I'll go back to my EOS Rebel.
@ Jawan: Copying and pasting is the only means I have for discussing specs, due to my limited knowledge of electronics. In this case, I was trying to provide Greg with an easily accessible set of specs for the 2 headlamps I was comparing, so he didn't have to waste any time digging them up himself before responding. To pat myself on the back, if you will permit me, it worked beautifully. I learned more from the responses that followed than I have in all the years I have been backpacking.
All in all, a model thread, of the kind that has grown woefully scarce around here of late.
Thanks to all.