Hi Sir, thanks for the page. Sorry for any lack of comms in this thread, I cannot get everywhere to glimpse and this was one I just skipped over.

The biggest reason from the likes of Surefire for an example is customer driven with size, function and cost. I've had countless meetings with them NOT to discontinue the M1 awhile back and no more non power selectable .7mW IR lasers.  Once again, right wrong or indifferent, in SF's case we're always told, "the customer requested this".  And when the Mil or Govy customer puts in a twenty thousand piece order, we get the end unit from the customers requirement and it ain't about shooting hogs. On the other hand (see below), at times it takes SF and other top manufactures a long time to incorporate the latest technology. Case in point how long it took surefire to jump on the LED emitter bandwagon. There was a gap of around 3-4 years before they ditched their incandescent lights and make the tech change to LED's, in fact they were probably one of the last to transition and were getting their sales gaps severely closed in on. But at that time they were still delivering thousands of incandescents each month so there was no urgency.

I will preface this, IT's AMAZING nowadays how the tides have turned on who makes all this cheap stuff. Years ago when we first designed our first Torch, we about get hung from the rafters when we went the Russia route and I also got hung when we went the China route for our first LED drop we called the TNVC "Q5" for Surefires 6P's, G2's and other lines when no one else was doing any LED type lights at the time. I mean we got HAMMERED and called sell-out's etc. Granted at that time, TNVC being a little guy in the big pound, most all US manufacturers wanted lots of 10K or more even to look at us.  Also let's not forget as we got fried, ALL emitter pills at that time and today were not made here in the USA, nor hasn't that changed.

Flash forward nowadays, no one seems to give a rats ass where anything is made, it's all about cheap.  Heck the PERST laser and other systems even have Russian instructions and I'm just amazed people just don't care any longer about where it's made, as long as it's cheap!    Hell we got a bit fried for our small Thermal video recorders we sold (99% all made in China) due to the manual had instructions in English and Chinese.

With that said, there is always a balancing act of power and IR frequency and battery capacity.  With our latest Torch Pro we made it in Germany with some of the best glass lenses and electronics, but it ain't China cheap like that.   With this latest China unit being advertised at the power they are claiming at 940nm, I REALLY want to see the visible signature of that emitter. It's interesting they also do not annotate any IR ranges they are getting?  Maybe I'm wrong, but this will be the tell all with the power they are claiming and the size of their head.  We shall see how their 940 emitter compares against other 910+ emitters.  I know we'll hear, "yea, there's more viz signature but look at the distance I'm getting".

They do, BUT they are very concentric.  Take a IR Class 1 laser and put close to your hand (without NODS), turn off the lights and you will still see a visible dot.

Caveat....Do NOT look into ANY emitters, IR eye safe or not!  Stickers don't mean diddly, especially when they are called Luna Class 1.

Thanks JW! Look forward to the results

Good to see your type Hardware. It's been awhile since I tried the filter route, but how much of a decrease in performance?