This light definitely is deal of the year,doesn’t stop to amaze me as further I go with testing.
Even with the red indication turned on for low battery, 3,5V actually in turbo, 3,3V in other modes, it still manage to deliver constant curent and 1000lumens without drops for 3 minutes,and then gradually steps down to 650 lumens. And you can repeat this 3-4 times until you finaly lost Highest mode. Temperature of light never even exceed 41 degrees Celsius…
At 3,1V light will only have moonlight mode and will remain to cutoff at 2,9v.
I am charging it right now via USB and it’s pushing in 1.95A like a charm, so hopefully 3 hour’s to charge fully drained LK 5000mah !
That is something ! You would need more time to charge 3000mAh 18650 battery in some regular 1A charger…
Ok, I did George's L6 clear switch mod, and it did make a hugh difference - it feels about perfect now. It does stick out a bit, so not good for accidental activation. Now it fells great - rock solid, and easy to engage. Here's some details.
Here's the parts replaced:
Maybe a little sloppy, but it looks worse in the pic. 4 cuts, square piece in the middle:
This is the blade I used - think it's a surgical throw away knife, not sure, it was given to me:
The dragon's breath mode is a bright pink now, not red at all, definitely pink and pretty bright.
Received my Manker U21 production sample late today,and just a quick report…
Since its CW I expected 10-15% higher output,and I got 12% lumen gain from ceiling bounce test. My new Lux meter is on the way so I will have exact numbers for a full review. Amp readings at tail is 3.01A so not even close to 5-6A.
This is something I was trying to prove, and means that Manker have changed original engineering driver and now have same output like Utorch in same tint option!
I was expecting this. Since the UT02 has Manker stamped on the driver, and appears to be same parts or so, figured they some how downgraded output since the first batch, and did not update the specs, assuming it was intentional - but may not be of course. They might not even be aware of it.
While it IS the same light, essentially, it’s not the same light.
Driver, switch pcb, reflector, AR glass lens, bezel and tail cap seem to be the same. The head has different cuts and the battery tube is quite different, as are the switch covers on the side. UI is the same, as far as I can tell early on, but the UT02 outperforms the U21. I got 2.30A on the Utorch and 2.24A on the Manker.
UT02 for 1093.65 lumens and 97.75Kcd for 625.3M
U21 for 1069.5 lumens and 95.75Kcd for 618.87M
The Utorch is visibly brighter, side by side. This is, of course, the two sample lights I just received about an hour and a half ago. Variation in samples is most surely going to occur.
MNKE 26650’s, same batch, virtually new, fresh off the same charger.
That was fast Dale ! Thanks for sharing.
So the numbers match to mine conclusion above, CW either UT or Manker gives ~1100 lumens and NW is at 1000 lumens…
I get it: because is a good reason for us (flashaholics)
But for a muggler?
(Similar price, it doesn’t deliver more or better light and the size is about the same plus you have to invest in new cells and a charger.)
UTorch can’t live on sales to flashaholics only, or?
) .