Review : Utorch UT02 Flashlight (XHP35 / 26650 / usb rechargeable)(in progress)

Confused now, sure thought it was the UT02 that had a 3A built in chargerā€¦ now I canā€™t find if thereā€™s one I have that does or if I just got it wrong. Thanks Giorgo.

Mine rises slowly up to 1.9A. 3A would be quite difficult for most USB power supplies.

But of course, with most USB outlets having a 2A max. Seems there was a light that had more than one USB charging port that could be used simultaneously to charge faster although thatā€™s not where I got the 3A figure, mustā€™ve just made that one up. Sick and tired of being sick and tiredā€¦

Yup, the MecArmy PT60 for example goes to almost 3A with three micro usb charging ports (or just one if the charger is up to it).

mine makes close to 1100 lumens, and 99 k lux, its nw

I ordered last week an UT-02. I will be interested in the details of your build to keep charger and make better driver. Please inform me when you do it. So then If I will be unhappy with performance I can make an upgrade. :smiley:

I just got mine. It only does 2,2A at battery :frowning: The lowest I ever seen for a UT02 in this topic.

It depends on the battery . The lowest it draws , itā€™s more efficient .

Check OP here : Utorch UT02 vs Manker U21, group buy review for UT02

Mine has black LED centering ring and no manker branding on any boards.

U21 changed centering rings too 1-2 months ago , i remember reading this somewhere

Well, after modding 3 of those using r100 and running them moderately for already 3 month( security and hunting mainly, like every night) we could say the driver seems to be stable enough.
3d emitter, tail amps at 4.2, candelas 135k

Do not apply more agressive modding cause the driver will fail, i have several failed so far

Thx! I will do the R100 mod.

Mitko, can you tell us where the driver is likely to fail? Thanks for any help here

Most likely the power elements: the coil and mosfets: i`ve examined only 1 of those failed drivers actualy cause its hella time consuming and those elements were fried, prolly due to the heat caused
cooling this driver is a must btw, it heats alot, those lovely sillicone cubes will help

Also using a 1206 as a mod R would be good too, the resistor also generates lotsa heat so a bigger one is actualy a good idea

Hi, which batteries does mitko use? I measured different distances, with liitokalas and does not exceed 119000 cd in 7 meters, greetings !!

Efest Purple 4200 with a bypassed front spring ofc, on some of those torches the centering ring needs to be tuned too( usualy sanded a bit, but only an idea)

I dont have a reliable Liitokala source anymoreā€¦.EU regulationsā€¦ i have a feeling they will ban flashlights sooner or later

Thanks for your prompt reply, regards!

So itā€™s safe to mod with a 100R resistor?
Is wiser to use some silicone heat transfer cubes with just the 100R only mod?

I was about to buy it because of the 33 USD deal, but then I read a few reviews and I really donā€™t like the fact the the led is underdriven. Actually I was looking for thrower bigger than my C8 (not huge like the convoy L6, still easy to carry), without spending too much, but I donā€™t think this UT02 will significally outperform my C8 with XP-L HI and FET+7135 driverā€¦ so whatā€™s the point in carrying a bulkier flashlight?

I mean, the host looks awesome, but considering the 12V Led and the electronic switch, I donā€™t think itā€™s easy to swap just the driver (I wouldnā€™t care losing the charging if the led is driver at its full potential). The people who had the failed driver, what have you used to replace it?

Of course modding the original driver is always an option, but this particular light seems to have an easy failing driver even in stock, like stated in the posts aboveā€¦

I a bit confused :s what would you suggest? Also the deal is ending very soonā€¦

I am trying to remove the head from the battery tube but it seems to be stuck. Is it glued on?