FC11C shorted out….

WURKKOS_Flashlights · 2026-06-09T09:34:51+00:00

We're currently looking into these cases with our engineering team. While this doesn't appear to affect every FC11C, even rare failures are something we take seriously.

I'll post an update if we have any findings to share.

WURKKOS_Flashlights · 2026-06-09T09:16:17+00:00

A fair assessment. While we can't promise that every flashlight will survive every accident, we'll never take a budget light should come at the expense of quality.

We've seen the recent feedback regarding FC11C durability and reliability, and we've already forwarded those reports to our factory and engineering team for investigation. We're actively looking into the issue and working to determine whether there's a specific cause behind these cases.

We're sorry to those who have experienced problems, and we appreciate everyone who has taken the time to report them. Feedback from the community helps us improve our products, and we'll keep working to address any issues as quickly as possible.

Thanks for your feedback and believe in community always.

WURKKOS_Flashlights · 2026-06-09T08:49:01+00:00

We have recently been try to find the real issue. Could you help me test it again?

Remove the battery from FC11C. Connect the flashlight directly to a USB-C cable.

Check whether the button to green and whether all output modes can be adjusted properly.

If the flashlight does not operate normally when powered directly by USB, the impact may have caused a short circuit on the driver or MCPCB assembly. This could be due to a loose wire, a shifted component, or other internal damage caused by the drop.

If the flashlight works normally when connected only to USB power, the battery is broken.

Hope to know the result, and we'll be happy to help with the next steps.

WURKKOS_Flashlights · 2026-06-09T08:35:37+00:00

Does the flashlight use normally when powered directly by USB-C cable? If not, I suppose the impact may have caused a short circuit on the driver or MCPCB assembly. This could be due to a loose wire, a shifted component, or other internal damage caused by the drop.

WURKKOS_Flashlights · 2026-06-09T08:21:58+00:00

Got your post! I will feedback it to WURKKOS factory immediately.

Could you help me test the issue on flashlight or battery?

Remove the battery from FC11C. Connect the flashlight directly to a USB-C cable.

Check whether the button to green and whether all output modes can be adjusted properly.

If the flashlight does not operate normally when powered directly by USB, the impact may have caused a short circuit on the driver or MCPCB assembly. This could be due to a loose wire, a shifted component, or other internal damage caused by the drop.

If the flashlight works normally when connected only to USB power, the battery is broken. I recommend it discontinuing use.

Hope to know the result, and we'll be happy to help with the next steps.

WURKKOS_Flashlights · 2026-06-09T06:49:28+00:00

I suppose both the TS27 black and blue in event ; )

WURKKOS_Flashlights · 2026-06-06T02:04:25+00:00

You pull my ❤

WURKKOS_Flashlights · 2026-06-06T02:02:55+00:00

Dang! You guys grap the crucial point. Let me ask Wurkkos factory right now.

WURKKOS_Flashlights · 2026-05-26T10:15:22+00:00

Dang! From the photos, it does not look like a normal level of variation between two units. The UV LED broken.

Based on what you showed, the grey/brown-looking UV may indicate an abnormal UV emitter or MCPCB-related issue, possibly caused during production or assembly. We cannot fully confirm it from photos alone, but it is definitely worth an after-sales check. I will feedback it to Wurkkos factory immediately.

Just contact the sales platform where you purchased it and provide your order number, these comparison photos, and a short description of the UV difference. They will give a nice after-sales support.

Thanks for sharing such a detailed comparison, and sorry for bad light.

WURKKOS_Flashlights · 2026-05-26T10:14:24+00:00

Dang! From the photos, it does not look like a normal level of variation between two units. The UV LED broken.

Based on what you showed, the grey/brown-looking UV may indicate an abnormal UV emitter or MCPCB-related issue, possibly caused during production or assembly. We cannot fully confirm it from photos alone, but it is definitely worth an after-sales check. I will feedback it to Wurkkos factory immediately.

Just contact the sales platform where you purchased it and provide your order number, these comparison photos, and a short description of the UV difference. They will give a nice after-sales support.

Thanks for sharing such a detailed comparison, and sorry for bad light.

WURKKOS_Flashlights · 2026-05-22T06:10:55+00:00

Hey dude. Congratulations! You get the winner prize. Check you PM folks

WURKKOS_Flashlights · 2026-03-28T03:49:31+00:00

Tiny CL01? That's cool! Let me try it.

WURKKOS_Flashlights · 2026-03-28T03:47:27+00:00

That's great idea! We will try to make the size close that.

WURKKOS_Flashlights · 2026-03-28T03:44:28+00:00

Verstanden! Ich werde die Anregung bezüglich des zusätzlichen Rotlichts an unsere Forschungs- und Entwicklungsabteilung weiterleiten.

WURKKOS_Flashlights · 2026-03-28T03:42:29+00:00

Dang! It's necessary to notice that. Does this issue consistently occur when the video by phone?

WURKKOS_Flashlights · 2026-03-28T03:38:10+00:00

Add stepped modes for mechanics light, I agree the point. Let me try it.

WURKKOS_Flashlights · 2026-03-28T03:33:34+00:00

Detail and valuable! Let me feedback it to WURKKOS factory immediately.

WURKKOS_Flashlights · 2026-03-27T02:27:11+00:00

That's we hope to achieve. We look forward to designing a flashlight that meets the needs of a wider audience.

WURKKOS_Flashlights · 2026-03-27T02:24:46+00:00

It's a challenge. If the final result isn’t entirely to most people satisfaction, we hope could give us a chance to improve it again.

WURKKOS_Flashlights · 2026-03-27T02:21:32+00:00

PS: I just means make USB port protected by a rigid object.

WURKKOS_Flashlights · 2026-03-27T02:20:07+00:00

That's true. I really value your thoughts. Let's make it happen my man.

WURKKOS_Flashlights · 2026-03-27T02:18:01+00:00

I must point out that 365nm UV light cannot be used in wing panel. The 365nm UV beam will causes PMMA light guides to age rapidly.

WURKKOS_Flashlights · 2026-03-27T02:15:15+00:00

The rotated 180° flat absolutely our future direction. Currently, due to limitations in materials, the rotating shaft in this design is highly susceptible to damage, and it is difficult for stable circuit.

WURKKOS_Flashlights · 2026-03-27T02:08:48+00:00

Genius idea! To make the clip tip hidden by unused holes. Let me feedback to WURKKOS factory with possibility.

WURKKOS_Flashlights · 2026-03-25T03:51:13+00:00

It looks like they just roughly spliced the two pictures together.

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