If you use their drop down menu where you see CW you will also see the option for NW http://www.thrunite.com/thrunite-tc20-3800-lumen-flashlight/
I used the discount code and it still worked directly on thrunites website.
thanks kirman, that info was most helpful, much appreciated !! think i shall get me 1 or maybe 2 :)
Well, I could not stand it 
Ordered and waiting impatiently for the courier.
Anytime! I'm still waiting for mine. Tracking says it will be here tomorrow or Tuesday. I get a feeling it will be my new favorite light to carry everywhere.
Got my CW today and it's a nice solid little light. I can't seem to tell the difference between 1800 lumens and 3800 lumens though. Normally based on my other lights, I should still notice a 2000 lumens jump between 2-4k lumens. I'll try it outside tonight as I have only been doing the ceiling bounce in a dark room so far.
I got the CW and it is has a very heavy green tint on all levels. I'm not convinced my TC20 is 3800 lumens though as I have a Nitecore EA21 and it gets 2150 lumens and when I point it at the mirror and have the reflector look back at me, it is far brighter than the TC20 at 3800 lumens.
Update: I see the problem. I tightened the head as was suggested with this light, and it will go on turbo for about 1/10th of a second and then step down again so I think I have a faulty one. I just found another problem. 1/4 of the emitter is not working at all. I seem to be on a roll with faulty emitters lately.
Turn your battery tube around. 
Non anodized threads go to the tail end … seems some of them have been put together backwards from the factory.
Thanks. Just checked, my battery tube is correct. The 1/4 section of the led is ok on the higher modes so it just won't stay in turbo for some reason.
What cell are you using? Sounds like a protection circuit kicking it down when asked to supply too much power…
The one that came with the flashlight. I'm just charging my protected Keeppower and will give that a try in an hour or so when it is charged.
I may be misunderstanding what you are saying here but ……………
Are you saying that 1/4 of the LED is NOT working in some modes?
Yes, on firefly and low mode, 1/4 of the led is not working at all.
Something is wrong with the LED itself then……should all be working in all modes.
This is mine in Moon………
Your led looks fine. I borrowed my wife's camera and not sure how to use it, but here is my pic of the led.
I put a green filter in front of it to make it easier to take a pic of as her camera is iffy.
Yea definitely something wrong there with that emitter.
Yes… there is something wrong with your led… this is not new… i seem xhp70.2 and xhp70 diffuse dome light up half led… so your led is defective… time to exchange!
Thought so. This is my second flashlight with a faulty led. My DX80 has the same problem but only half of one led is dark.
I just sent an email to Thrunite and will see what they say. I ordered this light through their website and it came today here in
Canada from Amazon.
I think they will make it right without much problem , but don’t hold me to that though because I HAVE been wrong before….lol
Hate to see anyone get a faulty light , but at the same time I don’t know of any of the companies that have a perfect track record with quality control yet.
Yours is actually the first one I have heard a problem out of.
They are nice little lights though and I hope it is a quick and painless ordeal to get things done for you.
Thanks. I know it can happen though and I feel much better already knowing just how bright it is in turbo now that I switched batteries. I was feeling a little deflated before thinking it's just not what I thought turbo would be haha.
What model Keeppower battery are you using how many MAH?