Would like to know as well.
How long before they come out with the L20 
probably next month, since that’s the start of 2021 
crickets
I emailed them repeatedly, and they finally replied to just simply refer me to their facebook site.
Yep, head diameter is 60 mm: https://www.acebeam.com/long-range-hunting-flashlight-19. Dunno how I missed this, or it was updated. I found a page on their site but didn't have the price or much details. Funny they avoid listing the full OSRAM part # - they list a "PM1", so could be either KW CSLPM1.TG or KW CULPM1.TG. Based on the lumens rating, it should be the Boost HX (KW CULPM1.TG).
422 kcd seems possible in a 60 mm light, but the 1650 lumens rating sounds aggressive.
The lumen rating is believable for thre boost HX if properly binned and driven. If you look at the head, you can see extra heatsinking. That tells me they’re driving the emitter pretty hard (all the Osram L lights do). Osram lists or up to 1900 lumens. I’m super excited about this one. I’ve been waiting for an optic light with a boost hx and am glad Acebeam was first.
PM is sent. Please check it.
Dunno about that. My dog was a lousy shot.
I’m not an avid hunter, but I am pretty sure here in Texas you can hunt hog at night. They are an invasive species so the easier to get rid of them, the better
Still no word on what type of LED being used in L19
The Olight Javelot Turbo has very similar specs. It is also using Boost HX and rated at 422,500cd/1300m but is using a reflector in a 63mm head rather than a TIR. I’d be very interested to see some side by side beamshots of these two.
It’s the Osram Boost HX (supposedly).
It’s overpriced.
Fireflylite T9R is basically same dimensions, throws farther, is cheaper, even with the SBT90.2 it throws as far as this one while producing 3x the lumens and still costs less.
True, a Noctigon K1 with W2.2 (4040 Boost HX, which is probably the same emitter as in the L19) is cheaper and performs better.
Isn’t the the head smaller though on the L19?
Vapor-Light T9R that doesn't exist yet, is 64 mm head, while the L19 is 60 mm.
No comparison with the K1 because the K1 has a much bigger 72 mm head diam, no tail power switch.
Also, the L19 is using a CC buck driver with no PWM. It's listed compatible with two RCR123's so has to buck down the voltage.
I'm defending the AceBeam L19 here, odd for me, but the differences between the supposed T9R and real K1 are significant and contribute to the higher cost of the L19. A buck driver that probably needs to produce 8-9 amps to get the #'s they are quoting is not cheap to do. They could be 'cheating' a little by having a direct FET output channel for turbo, I dunno, but still if you run it at lower levels, you get the benefits of a no-PWM efficient buck driver.
I have to agree here. I prefer a buck driver to an Fet, especially if well designed and regulated. I tested the L17 and L18 and really liked the output regulation. The L18 did very well and has a CC driver, no PWM,l with excllent regulation and performance. For it’s size (60mm) the L19 is a great light. Acebeam will undoubtedly issue a code for a discount soon as well so the high price will be easier to stomach.