Klarus XT12GT

I also got mine yesterday…at start its about 1450 lumens and 85k candelas, all 3 of them shows nearly same result with their default batteries, or Samsung 30q ot 25r or VTC5/6
The preformance with Sanyo GA is pathetic, 56k and under 1k lumens, i dont have a clue why is that, maybe a driver issue

Yet, those 85k dropped dramaticly in just 30 seconds to 60k and the body wasnt even hot/ that drop resets when off but still the intensity drops quite fast
The little USB lamp is fantastic!
The PWM on lower levels is terrible
Overal feeling is good but not great, for the money i paid i am kinda pleaced
The interface is good too yet it could be inprooved, you either have a strobe or a low mode in an instant but never both at the same time
The charging feature is greats and its maybe the best thing in that torch + plus the lovely USB charger 3000k light

A good modded C8 destroys it with either price, throw, lumen output, and ease of repair…for nearly the same money you can get M2X

does everyone here have same experiene with my xt12gt, when running on turbo for quite some time (+/-60 seconds) the light shuts off for a second, then will turn on again at turbo. No whistle for my xt12gt running on turbo though.

No, mine would sit at turbo for a long time without shutting down.

I have just heard that I will be re-sent a new product so that is GOOD. It is on its way so it isn’t as if this fault on mine was to be expected, they’ve certainly made good on their problem.

I’ll post my faulty light to Lexel for a tear down to see what is wrong.

Hopefully in a week or so I’ll have my replacement and Lexel will have to faulty one to tear down.

Not in my unit, but the steps are very noticeable, including changes in PWM. Little noise in mine but I got used to noisy 7135 drivers so it’s fine.

Hmm… Seems i have a faulty light here. Might ask swi regarding my concern

I got my replacement today. Just doing a capacity test on the cell now.

Noticed that the internal charger cuts off at 4.25v exactly. Done it with a few cells.

Did a couple of ceiling bounce tests and this is ever so slightly brighter than the last one. Possibly down to the batteries being 4.25v rather than 4.20v but there was a 3-4% higher bounce readings to the old one. I checked two other lights and they were reading 1-2 lux different from when I made the readings last time.

Currently charging from a battery pack via usb - 5.12v @ 0.94A charge rate. I usually use the opus charger but I want to see how this goes over night. 26mins in, dropped down to 0.92a and it’s showing 0.401a charged or a smidge over 2Wh

It also doesn’t light up with a cell at 3.0v :slight_smile:

I’m sure lexel can rebuild your one that burned up. Host don’t go bad to often. Just switches, springs, drivers, LEDs/optics. Flashlights remind me of cars. Engine/trans/rear/suspension goes out and needs replacing. But the body and frame if even given no maintence will last decades just like a flashlight. (Didn’t say will look the best) Keep the threads lubed up and will last forever like a oiled gun will

I’d say your lucky two free lights a free replacement for a free light and two brand new 3600mah cells. One as a host for whatever led/driver you wish and the other as the light was built. I have no doubts lexel can rebuild it for whatever led/driver combo you wish

As far as the internal charging I usually only use it as back up or used it awhile at work and get some juice back in it quickly. But normally have a liitokala –100 in the truck as back up as well. They all vary a little like your other one did 4.20 this one 4.25 some people think that’s high but that’s within cell manufacturer specs. And honestly I’ve had chargers charge there and below and it’s hard to run a cell down to nothing. They don’t wear out very easily. Even when abused you’ll still get a couple hundred good cycles even beating them up high charge and discharge. I have one 2600 protected cell I’ve put through the ringer. Can’t tell you how many times was ran until protection tripped. The nitenumen ne01 has no cutoff. Has warnings but no cutoff. All my other lights are modded so I give it to my wife. She uses it as a lamp type deal. Since she breastfeeds easier then going across the room. And I’ve showed her to only grab these few cells. If it doesn’t have a button and gold strip down the side don’t use it And she charges it in the light mostly unless its dead and she needs it. But even after a few hundred cycles being run down hard still has around 2300mah at 1 amp. So I don’t worry about charge voltage anymore if its within specs. The cell resting voltage will drop some anyway hours later.

The only issue I’ve had was a couple days ago my vc2 tried to pit nearly 4000 mah into a protected NCR b two of them and never happened before. I caught it at 3800/3700 they are protected and its never had a problem charging in it before. So vc2 is off duty until I get a new dmm in. Opus is on full duty again liito Kala no problem terminating either. I’m thinking something in the protection circuits was keeping the charger from reaching termination voltage some kind of high resistance. Imma running s test on opus now. These cells arnt abused. Charged at .5amp and discharged at 1-1.5 amp only down to 3v and the abused cell with couldn’t count the protection trips has no issue in the vc2 and these cells have never been tripped. So I don’t worry about cells anymore use them and recycle once they drop around 60-70% same with laptop lulls 1600+mah I’ll keep and run them hard once they get below 1500 back to recycling. My logic $10 every two months on cells and you’ll never run out and have plenty to rotate for years to come. Even the westinghouse Walmart 2000mah cells arnt bad. Average laptop cell quality. Good for about 4-5 amps. Still have just under 2000mah at 2amps. I keep four in the truck for a just in case situation and need a another battery. For $2.50 a battery have no complaints with their performance