Just keep in mind the performance of the cell. All 10440 cells are not alike. Some have lower resistance than others, but none of them can compare with the better 18650's or 21700's. Also the 10440's increase resistance with age/use, faster than the bigger cells.
Got my Nano today:
- switch LED is not working (should be RED from the pic), tried to enable it through the config UI but it didn't help. The LED is there and looks like the resistor is there, so not sure how they disabled it. I was expecting it to be factory configured with the LED off, but allowing you to turn it on. Probably a good idea to have it disabled because when NarsilM sleeps, it doesn't do LVP, unlike Anduril, and with such a small capacity cell, not a good idea to keep the LED ON.
- appears to be pretty decent throw, considering the battery
- I got a copper MCPCB, and appears to be DTP. I got pointy needle type of leads on my meter, and you can see bump outs of the center pad, so I pocked one of the leads through the top layer and got continuity with the MCPCB base.
- charging works! Light went green, batt measured 4.16V
Of course I took the driver out, and as expected, it has a 20 pin ATTiny85, no pogo pin I/F, and also the CPU is on the top surface of the bottom PCB so blocked from any type of clip. Dismantling the 2 PCB's looks risky for me to do - easy to get apart but re-assembly would be tricky to align it, and level them perfectly.
Would like Anduril2 in it so could do voltage and temp calibration, and enable the switch LED, since Anduril2 monitors LVP even when asleep.
As many have reported as I did in my post earlier. No biggie as who cares as it’s probably a battery drain anyway but it’s weird that Lumintop would tout it as a nice feature.
Red Led comes on when battery gets weak.
Nice but if it doesn’t work at all?
Thanks for that Jon and understood and whatever you do, the back button switch light on many of ours doesn’t work at all! If yours does, great. Mine doesn’t but IMHO, I don’t really care.
Disregard my low voltage comment, mine seems to be on even now with high voltage but it is so dang weak you can not see it in well lit room even up next to your eye but in dark room it is dimly lit.
Did seem brighter outside in dark when cell was weak so that is why I thought low voltage alert.
I am so used to doing mechanical lockout it will make no difference.
Cool little flashlight when used with 10440 tube.
I wrote to the three lumintop sites asking if they are official lumintop factory sites, all 3 replied.
two are, lumintoplighting is not
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this came from ec@lumintoponline.com:
lumintoponline.com is a part of lumintop, and it is official site from us.
I am sorry we do not know the site https://lumintoplighting.com. And I have already reported this to the management.
===
this came from lumintoplighting@foxmail.com:
The website www.lumintop.com is Lumintop official website.
The website lumintoplighting.com is an online shopping websites
===
and this came from leo@lumitop.com
www.lumintop.com is official website
The EDC01 that I had would screw on part way but does not reach.
Confirming what others have already discovered the UT K18 works well, offering the choice of pocket clip or keyring.
You are right Jon_slider. I placed an order with lumintoplighting and it turns out to be a fake Lumintop site with fake inventory. They showed the copper GT Nano as being in stock but after I ordered it showed as shipping in 10 days, so they were actually taking preorders or are drop shipping. I requested cancellation and a refund 3 times and finally got a response asking for my Paypal address for the refund which I sent and they said it would be 2 working days. I hadn’t receive it after a week so emailed them and they said that they “regret to inform me” they’d shipped it on the 10th (despite my 3 cancelation requests) as they didn’t get the Paypal address but would try to “withdraw” the shipment! on the 12th and have been silent since. I very much doubt that they actually shipped and I won’t know for months as I have no tracking number and the mail is very slow here. What BS!
So I’ll file a case with Paypal. I’m sure I’ll win as things are pretty clear and in 20 years of using Paypal I’ve only opened 1 claim (against Nealsgadgets) so I have some
credibility but I understand it’s a hassle if they contest it.
It looks exactly like the official Lumintop site, uses their logos, photos and descriptions, shows the number of items in stock and and answers questions as if they are Lumintop. It seems like a lot of effort for what can’t be that much money. I’ll let the real Lumintop guys know about it.
Bizarre.
My ultratac k18 doesn’t fit. Threads are different. Mine is also the newer model k18, slightly different than the one pictured above.
What’s more bizarre, I purchased two lights back in December and January (GT MICRO, GT MINI, both NM1) from Lumintoplighting without issue. Both were received timely, and I have no reason to believe they aren’t genuine. Not saying these guys aren’t shills, but if they are, they surely do a good job at it.
there are a lot of flashlight vendors that try to give the impression they are the manufacturer, when they are actually resellers
fenixlighting, fenix-store, nitecorestore, are all Not manufacturers, they are private businesses.
In any case, paypal dispute is the quickest way to Stop the frustration of unaswered and misleading emails back and forth. Vendors are motivated to protect their Paypal relationship, disputes go to a different email address (listed in Paypal).
Filing a dispute immediately escalates to resolution. I recommend not wasting time negotiating with the customer service staff on a vendor site.
good luck with your resolution, Notmyrealname.
fwiw, Lumintoplighting would probably still ship your item, once they get it in stock… Neal does the same thing, he takes orders before he has stock, then ignores email questions he cannot answer, such as, did it ship, when will it ship, and other consumer support questions. otoh, Neal immediately gives a refund, if a clear request is made. By clear request I mean, not an exchange, not a modification, not an addition, just Cancel and Refund.
Got my Nano in from Banggood and the switch led does not work, and it does bother me. 
congrats on your new light
sorry the switch led does not work
hopefully it can be fixed, a lot of people report it not working
this is how it is supposed to work:
I guess we could be glad there is less parasitic drain with the non working LEDs… its a feature, not a bug… LOL! :partying_face:
Sorry for you djozz but welcome to the Nano non working switch light club!
Looks like the official 10440 tube isn’t far away!
EDIT: Having checked Lumintops site, the 10440 tube and battery are available now as options! Tube: $5.55 and cell: $4.95
Can you please provide a date of when that was posted?
Also, to those looking at lumintoplighting.com, please check this post and the following first: Lumintop GT nano on the way - #671 by jon_slider
I’m not sure how to view the exact timestamp but around 2 hours ago (Victor Zhou on Instagram: "The 10440 tube for the GT Nano, get and what do you think? #GTNANO #10440 #LUMINTOPLIGHTING #edcflashlight").
I missed that post, I’ve already placed an order with lumintoplighting.com, is it worth cancelling my order? I thought it was legitimate, seems like the same underlying setup as the Sofirn site.