Just purchased a brand new noname XM-L focusable flashlight...

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Tom E
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Oh boy, if that's the same light - ugh. Lens is way smaller than head diameter -- total waste of radial real estate. I've seen these before and it's a shame - can't even say it will have more heat sinking.  "bigger width aspheric - more throw" That's the general rule anyway...

Barkuti
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Well, the light arrived past monday, and I’m taking my first impressions of it.
It reads “UltraFire” on a side, and just above it the words “HWA WYS” can be read.
The charger I’ve received charges very slowly, nearly 10 hours to bring mid charged batteries to full. Wow! Shocked
It’s not very bright, the led is lightly driven. Did a quick measurement of 0.36 A at the tailcap on high, with full batteries. That means less than 1 amp of current on the led, even considering full efficiency at the driver. It’s a 3W light, but it’s way floodier than my Saik SA-9, and more intense.
After 2 hours of running on high, batteries were still above 4 volts. The head barely gets warm to the touch. This is probably going to mean the light will deliver more than 8 hours of runtime even on high… (doing runtime testing) What a runtime beast!
Pill looks good (to me of course), solid stuff. Will try to upload a photo later.
Lens… plastic, and scratched. lol
Driver has 5 modes, and the dreaded last mode memory.
Tailcap current raises as battery voltages drop, it seems to drain the batteries at a constant power rate.

More info later
Cheers

The human mind, and its programming, is at the forefront of a particular battle of The Light vs evil dark forces. Nearly every human being on this beautiful planet “Earth” has some sort of negative mind programming in its mind. And you better take care of your mind programming, or someone else will in this wicked world.

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rusty zipper
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I picked up something very similar, a single T6 zoomie. It came with an insert for an 18650 as well as an insert for three AAA batts. Mine is a good light. I’m new to all of this and that light (in black) was the first light I bought. I was amazed (I still am) at how bright that thing is compared everything I have previously owned.

I hope you got yourself a winner.

Cheers,
Rusty

PH_Oton
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Here is my demonstration of kinda like “chrome plating” the inner part of the head. Flashlight was in fully stock condition except “chrome plating”.
You gain some lumens but visually you gain nothing because if your eyes are adapted to dark you will actually see less far
when fully zoomed.
cia212
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I got a similar one off Ebay for $12 – here

So far it works well except the modes seem to be random – they don’t cycle through in any set order. Great light, bad driver. I’ll probably fix it at some point.

Barkuti
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That’s the flashlight (in short mode). Of course I am not getting this guy’s numbers with regards to current. It seems to be the same host, but the driver is surely going to be different.

Thank you for the demo, PH_Oton. So the output increase is marginal… well, every bit helps!

Cheers

The human mind, and its programming, is at the forefront of a particular battle of The Light vs evil dark forces. Nearly every human being on this beautiful planet “Earth” has some sort of negative mind programming in its mind. And you better take care of your mind programming, or someone else will in this wicked world.

Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.

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Barkuti
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Runtime test finished. This bastard ran more than 12 hours (mostly on high) before the batteries collapsed. I wanted to check if the driver had any kind of protection/low batt warning… and none I found. Despite my frequent checks over the voltages, I finally took a reading of 2.1 and 1.6 V (what a first time outing!). Shocked
Well, it has been a harsh first cycle. The moral of this is… that with such a driver using the torch with 2 batteries can be… a disaster. Either that or use protected cells.

Cheers

The human mind, and its programming, is at the forefront of a particular battle of The Light vs evil dark forces. Nearly every human being on this beautiful planet “Earth” has some sort of negative mind programming in its mind. And you better take care of your mind programming, or someone else will in this wicked world.

Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.

I recommend saying no to Covid vaccine. Listen to your spirit or soul. Innocent 

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WarHawk-AVG
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Barkuti wrote:
Rusty Joe wrote:
Interesting. You might get 600 lumens out of it if all is good and in full flood (zoom out), but more likely 350 to 450. XM-L zoomies lose far too much of their light for my taste.

What if we were to apply chrome plating to the flashlight’s head? That should result in mirror like surfaces inside and dramatically improved exploitation of the LED’s light… Just had this stupid idea!

Cheers

Actually getting the LED as close to possible to the back of the aspheric lens helps with the flood (someone here posted about it in another thread that I can’t find), it modify’s the zoom though which is unfortunate

I have a el-cheapo zoomie, I took a pre ’84 penny and ground it down flat, turned it down , then soldered it to a 16mm copper sinkpad (in a skillet on the stove), then put a XM-L on it, and then epoxied to the pill, it now just barely touches the soft dome and the flood is excellent, but the throw no longer gives a nice perfect image of the XM-L emitter on zoom (fuzzy but not clear and distinct) but with the copper under it, it no longer looses brightness as the heat is quickly soaked up by the larger chunk of copper below it. I then put glow paint over the top of the entire star and did my best to keep it off the emitter, now when I shut the light off, the entire shelf glows

Nice even circle, no rings, no spots.

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