Review: UltraFire K10 (1 mode and 6 mode)

LED Flashlights – General Info 1 x AA / 1 x 14500 Flashlights
7

Hi Fran, I fixed the image and the link for you. Let me know if you need help to load a different image of your preference. Very nice review! This is an important review for potential buyers, since it's a new model with the usual incorrect description at DealExtreme.

8

Thanks sb, however I still havent took photos. The photo posted by me was he DX one

9

OK, is the stock DX photo good for now until you take photos?

10

Attempt nº1 to post a photo (bad quality, still no digital camera)

http://img217.imageshack.us/img217/3783/dsc00478tc.jpg

[URL=http://img217.imageshack.us/i/dsc00478tc.jpg/][IMG]http://img217.imageshack.us/img217/3783/dsc00478tc.jpg[/IMG][/URL]

Uploaded with [URL=http://imageshack.us]ImageShack.us[/URL]

--------EDIT by sb56637-------

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11

Hi Fran,

I edited your last post so you can see how I added the image. Just click on the image, and then click on the 18th button from the left on the top row to see the image link settings.

Take care!

12

Thanks sb, I dont know what happens to me and the photos.... (que patoso soy)

Si los reyes magos no me traen una camara estamos apañaos

13

Tranquilo, yo igual he estado pataleando con mi cámara digital de antaño, por eso nunca incluía fotos adecuadas en mis reviews. Pero acabo de comprar un celular usado con Android que trae una cámara mucho mejor que la chatarra que usaba antes.

14

Jaja my problem is a "mix": very bad mobile phone camera, not know how to take photos in a good way, and finally dont know how to post them (but now solved)...

Let´s see if the "reyes magos" dont bring me "carbón"

15

Hmm... looks like the emitter is slightly off center Or it's because of the smooth reflector?

LOL, fran I hope they'll bring you a good digitan camera ('coz I'm in the same situation LOL)

As to posting images in your posts... very easy. Just copy the URL ( http://img217.imageshack.us/img217/3783/dsc00478tc.jpg ) and paste it in (click on "OK" if you don't want to add the discription)

You can also paste the URL only, the forum will add link to it automatically

P.S.: hey, admin, where are you from? Or you've used Google translator?

16

Looking at the images of the TrustFire R5-A3and the Ultrafire K10 they seem to have the same reflector so the hotspot would be a large blob. Lot of flood and little throw.

17

Hey SashiX, Spanish is my second language, I live in South America now. Was thinking about opening ForoLinternasBarratas.com or LinternasParaTacaños.com but it just didn't have the same ring to it. ;-) Just kidding. And besides Spanish is covered admirably over at ForoLinternas.com.

18

Why did you call it Uniquefire is it not Ultrafire?

19

PFFFFFF Oh My God!!!! I am stupid! yes is ULTRAfire I need to correct it

20

hmmm..... Forget about that photo.... I dont know what happened to the CMOS sensor..... In real life the hotspot is perfectly round, no unperfections, no central black hole............. I need a camera

21

Well I got my K10 today and put in a new fresh charged 2300mah Energizer Ni-Mh and got maybe 3 minutes of use before the driver crapped out.

It wasn't nearly as bright as I expected it to be but maybe it was because of the faulty driver. I disassembled the light and removed the driver and as I figured it is the same one as my C3SS from LT and the same as a Trustfire F20 so as Fran and many others have pointed out this light definitely is not 3.7V tolerant!

I could see on the driver a small crack/split spot on the DC-DC boost converter so I knew that was the faulty component so I figured I would put her back together and give her a shot with A 3.7V battery. I didn't have any 14500's so I wired in a 18650 to the light and she fired right up. Much nicer output with the 3.7V battery as expected.

I have repaired the boost circuit on a few lights by replacing the DC-DC converter chip which I think is a cheap version/copy of the PAM2803 from this...cheap $2.19 fix for ppl with a fried boost circuit that uses the 6 pin PAM2803 DC-DC Converter.

http://www.dealextreme.com/details.dx/sku.25505

I posted a video for DX and filed an RMA. I will fix this myself if they will give me store credit for the replacement part.

22

But hard to make it happen, because you have to scrifice some money off the flashlight budget for that. Right?

23

@ bluebeam

Some things:

1- My two K10´s continue working with both AA and 14500

2- The driver board of them is not the same as the one in the F20 (the one with the red path)

3- I have to update the review and point that some units are being destroyed with 14500, to warn the users

4- Maybe I have been lucky, or maybe the problem is again the Vf of the LEDs

24

Amazing how things change so fast!! I ordered mine on Dec. 12th 2010.

My K10 driver is exactly the same as the F20(it has the red path)

Maybe the boost circuit on this driver dosn't like the XP-G LED?????????

25

no, I think that "the driver doesn like XPG" is not the problem. Maybe, the problem is the same as with XRE, low Vf

26

What? I didnt read that... It stopped working after a few minutes with NiMh!!!! Not with 14500... with NiMh!!! Incredible... the most normal is to stop working with 14500, not with Nimh. I dont understand