Hey mate, thanks for your review
I bought this light but due to customs issues I didn’t get it and now I’m thinking to go for the XT1C, that is almost the same, but for the 16340s!
But please, tell me, does the XT1A only uses the button top batteries, or a flat top (let’s say a Sanyo 14500 or a Efest IMR) would also fit? Just asking ’cause the Wuben E05 only takes “long” button top batteries (a Sofirn 14500 doesn’t fit for being small…)
Hey mate, thanks for checking it out To have some versatility is quite good, an having only unprotected cells and 2 short button tops, I wanted to be sure!
I am still on the line to get this or not (and take the XT1C), but at least I know it takes those cells!
Thanks for taking the time to check :+1:
Great review.
I just received my XT1A yesterday and too am experiencing the ‘flickering’ you referenced. However, mine does it in a particular way. With a 14500, it might flicker for about 10 seconds (maybe 20) then it seems to normalize. With an AA NiMH (Eneloop Pro) or Alkaline, it always flickers. Here’s the weird part, it only does this when activated from the primary switch (round, forward clicky).
When using the ‘mode switch’ and cycling from low -> med -> high, I never see the flicker regardless of battery type.
I didn’t notice any comment from @Narmattaru of this in his review, so I’m wondering if there’s a faulty batch. I have an email out to Klarus, I’ll post if given any direction.
I just got my XT1A today. My light has the exact same problem with flickering. Cleaned the contacts inside the head and on the barrel, I even tried 3 different brands of 14500 batteries, none of these solutions have worked. I’ll contact Klarus on Monday.
Mine seems to not have any flickering issue. I do wish it had a 4 or 500 lumen mode instead of the junp from 80 to 1000. Even a 200 lumen mode would work better.
I over tightened the head to the barrel and the flickering has stopped. Shouldn’t have to do this with a new light. I found the Nitecore NL1485- 850mAh 14500 will not work in the XT1A due to it’s additional length. If this continues to be an issue, be sure to make a video showcasing the flickering, Banggood wants video proof of your issue.
Flickering with the provided Klarus 14500 is intermittent on mine. seems worse when freshly charged. the flickering is persistent with a NiMH or Alkaline, and over-tightening didn’t seem to make any difference.
I just received this light a few days ago and noticed the flickering only on HIGH output. It also wouldn't let me change the output levels while it was flickering.
Based on junglejim13660's comments, I looked at the electrical contacts. Initially, I thought the contacts were the body threads themselves like a Surefire—but then I noticed the gold-ish ring inside the head unit (top of picture), and the very thin inner ring on the tail body (bottom of picture). It made sense to me that it was trying to push higher amperage across what is essentially a one-man rope bridge causing the flickering.
I grabbed a very flat knife sharpening stone and very carefully 'lapped' the tail body contact ring (bottom of picture)—almost as you would lap an AR-10/15 upper receiver—so that it would have a more even and flush fit with the head unit contacts. I cleaned the contacts and reassembled the light. No more flicker!
To check my theory, I loosened the body a tiny bit; just enough so that the connections made contact. Behold, the light flickered again. I tightened it back up with normal torque and the flicker is gone once again. The one-man bridge has been upgraded to wood. I assume the lack of bare aluminum contact surface is a compromise for a thinner overall body. Though, this fix is something that can be easily done in the QA process.
Good fix Bravi. I’m going use your method to permanently stop the flickering. I was also thinking that one or both of the mating surfaces were machined out of round.
I hope everyone who has this issue finds your post!
Thanks for the answer! I believe it is probably glued the hard way! I’m just making eventual plans for when my XT1C arrives :smiling_imp:
Thanks again! :+1: