As far as I know the two big US flashlight makers are Maglight and Surefire.
There are other companies like Streamlight, UK, pelican.
ML hasn't produced a light people want for years
The light people want is the plastic 2D incan.
The 2nd most popular light is the 6V lantern.
Maglight is #3. They outsell Fenix thousands to one. Forget about the tiny shops like 4sevens, Nitecore, Olight, etc, etc, etc.
Only flashaholics think Maglight is out of date.
Specifically I wonder why they don't produce 1AA lights with pocket clips for EDC. I know SF would sell a huge number of them just based on their rep and that they are USA made. ML could regain some of the market share that they lost in recent years if they would step into the modern day and quit holding on to the 1980s. Nobody wants to lug around a 4 D cell monster anymore.
LEDs need 3.4-3.6V to operate properly.
1AA 1.2-1.5V. You need to pay for a strong boost circuit to get light out of 1AA.
ML has gone 3AAA for their small lights. 3.6-4.5V do not need a boost circuit.
The MagLED 2D out throws the MagLED 3D. No need to carry around a 4D Mag anymore.
I sent an email to both of these companies letting them know that I would prefer to buy American and if they offered a 1AA light with pocket clip it would probably sell like hotcakes. My guess is if SF made such a light, it would outsell all there other lights combined and would be a real cash cow if they kept the price below $60 or so.
Surefire have been experimenting with 1AA in the ICON range.
ML makes millions of every model. Finding millions of customers willing to pay $60 is hard. Until ML figures how to make a 1AA in the $25 range you probably won't see any. Remember US wages are much higher than in China. A $60 Quark AA would cost $120+ if built in the USA.
and Surefire is stuck with CR123 batteries even though the rest of the world is moving toward AAs and AAAs. ...
...I only have one SF light left in my collection and that is my weapon light. I got rid of all the others because of the CR123 batteries. I was tired of running out of them and having to order them or try to find a store that sells them. Not every gas station stocks them like AAs.
Surefire started out making laser sights for SWAT. At the request of LAPD SWAT they developed a light that took the recoil of a shotgun for the 1980 Olympics. (There were no power LEDs until this century.) Then they worked on the pistol lights. It takes 4AA to equal 2CR123A in voltage. Try and hang a 4AA torch under your pistol. To make it simple for SWAT and especially the special forces Surefire standardized on CR123A. As Surefire is now starting to cater to outdoors people they are changing and introduced 2AA lights. As they have designed 1AA ICON lights 1AA will follow. As their main customer is still the military Surefire tends to follow military development procedures.
(I remember a case where a concept of a tank came up. 10 years later the design was complete. 20 years later they built a prototype. 30 years later production started rolling. Unless there is a war going on and something needed to be built right away military development takes their sweet assed time.)
Patience grasshopper!
BTW most Chinese companies are not pushing 1AA torches. They are going 18650.