I have two of the 2AA Victorinox lights and they are indeed well built.
I had two of the same light, and they were horrible! Not in terms of tint, but in terms of quality. Bought one at a B&M shop. Threads were bone dry! Head got hopelessly stuck.... Ended up tossing it down a sewer.
Bought another one because I thought I had gotten a rare lemon. Nope! Same problem again! Went around the corner to a pharmacy, bought some Vasoline. (This was before I knew better). Ever so carefully, I gently started twisting the head and applying a bit of lube. Twist it back down, then start all over again. Eventually, I got the head off. Batteries were dead. (Not like you can unscrew the tailcap to replace the cells on that particular model).
Upon closer examination, the threads were uneven. I can still feel it every time I unscrew the head. And the threads were so sharp, that they were cutting slivers off the O-ring.
It's amazing to me that Inova's parent company makes the Vic line of lights. You don't expect a company known for quality, to produce such a **** poor light. :thumbsdow