Just went to KD, and saw this:
I think it isn't bright enough - it only has 18K lumens.
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If you feel uneasy looking at the reflector of this light you may have this.
I wonder if this is actually any brighter than a SRK or a BTU shocker?
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I wonder how its wired and the driver they used. With a input voltage of less than 16.8v it about have to be a boost driver I would think. With 15 xml’s you can’t get a even array for 4 li-ion’s. Could be either 5p3s buck or 3p5s boost.
I have only a little doubt that it is almost twice as bright with 15 emitters, but if driven correctly, would be about 3 times brighter. It would also produce enough heat to get 210 degrees on the head surface!
It’ll be a super bright short flooder… Distance will suck..
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$6.60 per Led. Looking at it another way you could say that you get 15 XML leds for $98.70 and a bonus host thrown in. Its starting to look good.
My current and or voltage measurements are only relevent to anything that I measure.
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Quote from A flashlight seller. "Flashlight AK-91 is really powerful tactical flashlight. Lumen output 18000 lumens, beam range 14 kilometers"
I like the looks of this the BEST of all multi xm-l lights. You could severely under drive this for fantastic efficiency and still major output. Sweet.
even if each xm-l was putting out 100lm it would be 1500lumens, easily over 1000 OTF.
BLF members are hilarious:
"That’s like saying “My car has top-speed of 200k millimiles per hour”. Why not to just say 10 Ah?"
This is a great idea for emergency lights and floody lights. To get 100 lumens out of an xml it needs to be just under 250mA. So 250*15 = 3.75amps for a 1500 lumen light which doesn’t heat up. And that’s based on a 1st gen xml t6 which is what this light uses. That’s crazy efficient.
I can imagine it now.. an array 20 xmls giving off 180 degrees of 2000 lumen flood while only consuming 5A, and staying cool enough for a child to hold.
I still want someone to make a direct drive 1x26650 version of this light using the 50A continuous battery. 3.33A per LED on copper. 18000 lumens.
The low mode should be lower.
Reviews: Efan IMR18350 700mAh 10.5A, Efest IMR 18650 3100mAh 20A, Sony US26650VT, MNKE 26650 3500mAh, Acebeam MRC18650NP-230A, Efest 26650 3500mAh 32A/64A, Efest 18500 1000mAh 15A, Efest 18350 700mAh 10.5A, Trustfire TR10440, Samsung ICR18650-26F, Basen 18350 700mAh 10A, Basen 18490 1100mAh 15A, Basen 18500 1100mAh 22A, Basen 18650 1500mAh 20A, Basen 18650 2100mAh 30A, Basen 18650 2500mAh 30A, Basen 18650 3000mAh, Basen 18650 3200mAh, Basen 18650 3400 mAh, XinTD X3, Solarstorm K2
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