Just looking at the SecurityIng lights on Amazon and I have rarely seen such ridiculous lumens output claims.
“SecurityIng® 75W 18000LM 15X CREE XM-L T6 LED 5 Switch Modes Super Bright Flashlight Memory Function Torch”. It can take four 26650 or 18650 batteries, so has to be pretty big.
“SecurityIng® 9X CREE XM-L T6 LED 11000Lm LED Flashlight Torch + 3X 26650 Battery + Charger”. Takes three 26650 or 18650.
“SecurityIng® Army Green 12 X CREE XM-L T6 LED 13000 Lumens 5 Modes Super Bright Flashlight Torch, Waterproof,Dustproof and Shock-proof CREE XM-L T6 Bulb 18650 /26650 Batteries LED Light Lamp Torch for Camping and Other Outdoor/Indoor Activities”. Another four cell big light.
Physically they look pretty good and all are in the $90.00 to $100.00 price range They also list numerous versions of the SRK clone stubby lights with up to 7 Cree LEDs and 7000 Lumens output for much lower prices.
Anyone played with any of these monsters and want to give a better guess as to their actual outputs?
…i think i’m looking for a cheap 3x XM-L(2) SRK clone…
I see someone put SecurityIng on them
They put it on many known models, i see…
And i’m confused by the GB SRK-clone offer with 5x XM-L for little over 20 bucks…
That can’t be any good… can it…?
Not sure of quality. Richard at Mountain Electronics uses a SecurityIng 3 emitter SRK clone as the base model for his modified increased output SRK style light per his product listing. IIRC though he has posted that he had to return one batch of lights due to internal construction changes in the batch that were incompatible with his modifications. Currently it seems like that ALL SRK clone lights are a crap shoot as to what you will get when buying one. IMO better to spend the extra money and get a SupFire M6.
When I was younger, I used to be into car audio. And one thing you had a profusion of back in those days (and probably still today) were amps with utterly ridiculous power ratings. It would seem that the same thing exists with flashlights. Manufacturers simply put numbers on their products (sometimes referred to as Chinese Lumens) which cannot possibly be real. Back in the day, you KNEW that an amplifier with a 30A fuse could not possibly put out 500W because it was a violation of the first law of thermodynamics. Likewise, an 18000 lumen, 75 watt light would require emitters with an efficiency of 240 lumens per watt. This doesn’t exist - at least not in products available to the consumer or that have significant output. In all likelihood, you are probably getting closer to 2000-3000 lumens out of such a light. This is still high, and might be enough for you. But you are NOT getting what they are supposedly selling.
you dont.
you need an integrating sphere.
ROFLOL at the sellers that claim a xml-t6 at 2000-3000 lumens.
on a light that runs at 1.5a!
at 3a it might be 1000 at the led.before all the losses!
so since I’m getting 2.66 amps at the tailcap, I’ll be getting maybe 800 lumens per emitter? so maybe 7000 lumens total if I have 9 xm-l2 t6 emitters? (Just guessing that its a l2, close up views of the dies in my light seem to indicate that they are l2’s no clue if its actually t6 binned emitters or not).
My brand new TR 9X T6 measures in my lightbox at: 3,536 at start, 3,118 at 30 secs, with a 3.0A tail measurements on good, fully charged three KP 26650's. The 30 sec measurement is the one that should be quoted.
7,000 lumens is only possible in totally custom/mod lights (I have a J18 that actually does 7,000 lumens!!!) or $600+ stock lights. Everyone needs to please ignore all lumens claims by these guys - they are totally worthless, I mean totally. Back in the beginning, I thought they were real, then I truly thought maybe there's just a scale factor to apply, so if one claims 1,200 and another claims 1,500, the 1,500 would be brighter -- this is totally false. There is no relationship, and for amp specs, many times they just make it up because they don't know what it is.
If you got 2.66A at the tail with 3 cells, then you are getting less than 1A per LED. Guessing you got about 400 lumens per XM-L2 LED at the very best, that's about 3,600 lumens at best. XM-L2 will be about 10-15% brighter than XML's.
okay so even though my emitters are in series… I’m only gettling 1.amp at the leds even though the light is pulling 2.66 at the tail? is the driver really that bad that its pushing less than 1/2 of the tail cap current to the leds?
and anyone have any good images of the driver in the trustfire 9xt6 light? mines 2 boards… one is the contact board the other has a coil on it and a bunch of big transistors… (possibly fets… dont know… didnt pull it out to take photos… theres a ton of room in there though
There's some good threads on the 9xT6 - search for AK-47. There's also a SkyRay 9X. I believe my driver is the same as pictured in the old threads for the AK-47. Originally Richie086 said he'd get something like 5-6A tail measurement, but on the newer ones, you get 3A -- just like I do. Clearly, the current sense or current limting resistors were changed. So my plan initially, is to add a resistor to boost amps, but also copper wire up the springs. Actually my + spring looks herrendously under size, so I'll be replacing it, and adding copper wire to it as well.
Well, add it up. 3 cells in series, so ~12v. Assume 3A tail, so 12x3 = 36, so 36 watts divided by 9 LEDs, so bout 4W per LED, (4v x 1A). I've roughly estimating, but some #'s are actually lower, some higher, so could be in the ballpark.
Now let's look at hard data - I measured ~3,100 lumens at 3A tail - so it's 344 lumens per LED. So 1A per LED to get ~350 lumens -- yes, seems to make some sense, in the ballpark. These cheaper boost drivers do have loss's along the way, as well as loss's from the crappy springs, thin wires, etc., where voltage is lost due to resistance.
The 18,000 lumen claim is supposedly a 15 emitter light. That should, theoretically, be doable at a “mere” 1200 lumens per emitter. This would only require about 3.25A ea. But of course, that’s where it get’s ludicrous. As it would take 48.75A to accomplish such a feat!
The emitters can do it, the cells can’t.
The Chinese lumens are based on the Cree datasheet as to what the emitter is capable of, not what their light actually makes.
And I believe there are a few people here that have gotten fairly close to 2000 lumens from an XM-L2. I’ve gotten over 1700.
Some of these multi-emitter lights are a bargain solely on the basis of parts acquisition…
anyway I didnt really expect a whole lot after reading your guys posts… but still its a nice light I’m happy with it… for now now to finish my handmade build for the contest… just the case part to do…
everything else was connected and tested
