Update:
Stock is available now on Amazon US and Amazon DE.
OP is updated.
I’d also like to know when the green one will be available on Amazon. Or Aliexpress. So I know when to check. Is it like days away? Weeks away?
I haven’t been able to find a picture of the green one. The review you posted earlier in this thread had one that looked like it was tan color? Still interested in seeing a picture of the army green.
I will ask Wurkkos/Sofirn if they have a picture of an army green prototype already. It could be very similar to Sofirn‘s green C8F.
I am pretty sure it will be available on Amazon US/DE and AliExpress. As soon as batch #1 (black only) is close to be sold out they will start with batch #2 (incl. army green).
Will available on Amazon US, EU and Aliexpress
invite Amazon Reviews for Wurkkos HD20 ,PM me if you are interested in it 
C8f would look awesome in B&W camo colors…
Almost bought sc31pro. But this one is so tempting with 20$ discount. I will wait until 11.11
I have and like both 
SC31 pro (5000k) is a great EDC light producing a lot of light, has nice flood/throw, is very compact and has Anduril firmware but can’t be charged with type c - type c cables and also lacks powerbank functionality and a magnetic tailcap. For a walking-hand light I like this one better because of it’s straight design.
The HD20 should also produce 5000k light but it’s of much better quality (high CRI) with one of its LH351D emitters. It’s not as “in the face” bright as the SC31 Pro but it sure nicely lights up the things around you. This one can charge with type c - type c cables and has powerbank functionality so it can be helpful in some scenario’s. It does have a magnetic tailcap and is also a bit bigger and heavier than the SC31 Pro (but that’s mostly because of the bigger 217000 battery). So far it has very nice runtimes but I sometimes miss the voltage-check functionality of Anduril.
Both are amazing lights (really impressed by the light the HD20 produces, and it’s kinda sad the SC31 Pro doesn’t have the LH351D emitter as an option, maybe in the future!), but in my opinion for slightly different scenario’s
Thank you for reminding me that it can be used as power bank. I’m new to flashlight world and decided to have a decent one for emergency light because i’m just realized that i only have 2 cheap and low lumen incandescent light. of course, sc31pro would be wasteful to be on the shelf all the time. But i love how sc31 have muggle mode for my kids and wife to safely use it and have battery indicator light on all the times. It would be a shame if you’re urgently need it but it’s not gonna turned on.
And i had sp31v2 before (decided to sold it because seeing sc31pro are sold at almost the same price), i can see why everybody loves LH315D. Seeing hd20 has floody LH315D, it’s gonna be perfect to support my work as a designer and furniture maker. Throw is no good for inspecting colors & materials. And now my wife would not ask me why i need to bring a flashlight as edc (lives in a big city, so it’s consider weird to bring flashlight daily), because i will use it mainly as a power bank. Sure as power bank, i will check the battery daily, so the absence of always on indicator is not a big deal.
Now i just only need to wait until 11.11 and hope they included 4800mah not 4000mah. And buy a cheap energizer 2AA for emergency 
You can disable that indication light 7 short clicks when the light is off (or 3 when it is locked out) toggles through the indication modes (low - high - breathing/heartbeat - off)
Invite Amazon Reviews for Wurkkos HD20 ,PM me if you are interested in it 
HD20 purchase link : http://amzla.com/trrcl8qgyqub 20% discount
Invite Amazon Reviews for Wurkkos HD20 ,PM me if you are interested in it
HD20 purchase link : http://amzla.com/trrcl8qgyqub 20% discount
Besides Army Green, any other color you would like try for HD20?
I would recommend to NOT producing any shiny, bright-colored versions of HD20, i.e. no flashy green, no blaze orange, no sky blue etc.. It just doesn't work well for a head lamp or tool lamp, in my opinion.
If I had to choose I would go for "Urban Camouflage" or "Desert Camouflage" to use as a matte camo pattern for some of Wurkkos's flashlights, especially for HD20 when attached to a protective vest, a combat helmet or hat.
So far, a few manufacturers have offered these kinds of "anodizing" like Wuben, Olight or Klarus. However, it will for sure increase the price a little bit.
Here's a draft picture of Sofirn's LT1 with camo pattern. Unfortunately, chances are negligible that this version will ever be made.
Nice camo pattern!
Your draft pic looks really nice. 
Thank you raccoon city. But all credits go to TLF member Andreas "oOFOXOo" who is a genius in Adobe Photoshop and who helped me to create some suggestions for the next LT1 colors. ;-)
BTW: Lately, I was lucky to get Resident Evil 1-6 as a box version for a true bargain price on Amazon. I can't wait to finally watch The Final Chapter. :-)
I’m looking forward to having one, spot + flood would be perfect for bike rides and trekking in the mountains without having to use two flashlights at the same, and the autonomy offered by a 21700… 
I hope it will be available on Amazon.ES.
Since Wurkkos did some unexpected last minute changes in HD20's user interface, I took the liberty to do some editing of the manual in order to reflect the actual UI that was implemented into lights of batch #1. The revised parts are highlighted with red text on yellow background. Sorry for any inconveniences you may have encountered by following the UI stated in the original manual.
