I know that this is a really old review thread, but I just got one of these from shiningbeam.com, and at least initially, I’m finding it very nice. I have several AAA twisties, including a ITP A3 EOS (upgraded) and an Illumina Ti, which are much smaller, but I really like having a clicky switch on a AAA light, which is what this HypeTac has.
Also, I like that it turns on in medium mode instead of high or low. A good compromise IMO.
Besides the clicky, the stainless steel light really “caught my eye”. It’s actually pretty nice aesthetically, and not just a plain shiny tube, but the grooves on the head and tail end give it a kind of “designer” look.
Finally, re. the clip: I don’t wear pens or lights in my shirt or pants pockets, but I ordered a lobster claw from shiningbeam.com at the same time, I put the split ring on the clip, and will wear it like that on a belt loop. I also do the same when I’m carrying the ITP and Illumina Ti (but not all at the same time :)!)…
Thanks for the review and pics.
Jim
P.S. Has anyone tried this light with a 10440 yet?
Concerning the 10440 cells, the manufacturer states that it is alkaline/NiMH only, so personally, I wouldn't try it just to be safe.
However, if you are a more daring fella than me...
Well first of all, the driver components must be rated for the higher voltage. If that is the case, the thermal path of the LED must be good enough to wick the additional heat away.
It's really hard to predict anything, it could be an instant driver fry, or it could work fine at first but with a reduced lifespan...
You could try and ask the manufacturer, I think they've got a contact form somewhere on http://www.hypetac.com/
In case you like coloured flashlight, the Hypetac P1A's almost identical twin brother, the Bronte RA02 is available in red and blue for $ 22 @ manafont: