Скачать Super 30000 „Chinese lumens” 12x CREE XM-L T6 LED Flashlight Torch 4x 18650 Hunting Light Lamp

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Опубликовано: 1 year ago
Quick test of this blinding-bright 12 Cree XM-L T6 LED Flashlight powered by four 18650 3.7V Cells. MY EYES STILL HURT! ...
Get yours here: https://goo.gl/Cd4HVk or alternatively a bit cheaper a 20k „Chinese lumens” version https://goo.gl/ytMHrt (please note that these flashlighta do not include any 18650 cells, which I believe is better to purchase locally - the cost is not that much lower in China and the quality varies. Nevertheless, if you would like a complete set including also the battery cells and loading power supply, you can get one for about $10 more here: https://goo.gl/va7liI )
p.s. I can also fully recommend the power bank from which you see me removing the cells - you can get one here https://goo.gl/A7BxtE and the same thing applies to the batteries - get them locally. The case itself has some great features - it measures and shows the charge of each individual cell and it also measures the current draw output on the individual USB ports.

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It's brighter and better than a maglight or some other lame flashlight you would spend more at home depot etc.. It's good enough. Let's be real mostly all of ain't that stupid to spend over 400$ on a flashlight lol you can get a fuckin handgun for that price.. Stop it

1 week ago

6800mah batteries... i HIGHLY doubt it...

1 month ago

Take it from me cheap torches dont last long i have bought many torches. I only buy known brands

3 months ago

30,000 Lumens please consumers really cant be this illiterate. 30,000 lumens would be equivalent to about 3000 watt halogen stadium lighting, You know those big lights they use to light up football fields for night games. They are actually closer to 40,000 Lumens

30,000 Lumens would require about 2000 watts input. That means those batteries would need to put out about 540 amps which is about twice the amount of current needed to start a good old American V8 motor. The batteries used in that flashlight are 3.7 amp hour batteries meaning they can supply about 3.7 amps for an hour or 7.4 amps for 30 minutes. or 11.1 amps for 15 minutes

Now assuming the battery could even handle 540 amps without blowing up they would last a grand total of .017 seconds at that output level before they completely discharged.

5 months ago

Ok, Still, the LED efficiency will be much greater than incans. I agree that manufacturer ratings can be a little exaggerated, but still, 100 lm/W is pretty doable on moderate to mid load, on high - maybe 75lm/W. Depends on the tint, CRI rating etc.
As for the flashlights - most of no names will have abysmal heatsinking. Typical example is a '1000X' ( :D ) zooming light. It is common to see XM-L (often fake one) placed on Al star suspended in air. Sometimes the LED just desolder itself.
The light in this movie - I bet that it is a 2-3mm Al ledboard and after a while the LEDs will start to flicker on full power.
If you wish to check some lights with good price/quality ratio check the Convoy brand - on sales S2+ model can be bought for $7 ($12 is common) and heatsinking is pretty decent.
Mag, Olight - sure, most of the time it will perform well, but for the price.

4 months ago

Luke P yep I'd be hesitant to buy 18650 cells off eBay. They were pretty much all over the place in performance. It's almost as though they're using reclaimed cells harvested from dead laptop battery packs.

As I tried to say numerous times, there's a big difference between theoretical laboratory performance and the actual performance of consumer level products.

I also believe there is some controversy over the method used by top LED manufacturers to measure or in this case rather calculate the Lumen output of their LED devices.

I do believe the maximum output they claim is based entirely on calculated computer models rather than actual measured output.

LEDs are very directional sources of light. It's very difficult to accurately measure the output of a directional device or spot source in lumens.

Therefore it has to be modeled and calculated rather than measured.

Did I mention the equipment needed to measure lumens accurately is very expensive, the sphere alone runs between $10,000 to $20,000.

Of course if you're into Electronics engineering you already know that test gear is very expensive, the Agilent VNA sitting in my home lab sold for over $160,000 new. The cal kit cost an additional $8,000. And I won't even go into the cost of the various test fixtures and phased matched test leads.

I've measured the output of various LED devices using a neutral gray darkened room method. I'm lucky that I actually have an empty spare bedroom that my wife let me paint neutral grey. Most of the 100 watt and 60 watt equivalent light bulbs where close enough.

On the other hand measuring flashlight yielded results far lower than the manufacturers claimed output. Unfortunately the lighting fixtures I used in the horse Arena were too bright and tightly focused to accurately measure in the the neutral grey room

By the way the only flashlight I measured which came close to actually meeting it's manufacturers claimed output was manufactured by MAG.
If I remember correctly it was roughly a 500 Lumen output flashlight.

Interestingly enough MAG's 500 Lumen flashlight was brighter than every single eBay special I tested all of which claimed much higher outputs.

By the way I would never test the flashlight fresh out of the box.

Every flashlight I tested was burned in on a power supply for 48 hours.

This leads me to believe that the vast majority of Manufacturers are vastly over driving their LED products.

You can visibly see with the naked eye the decrease in brightness after just about 1 to 6 hours of use. By the way the break in fixture I built for this test cycled the power to reduce the duty cycle to 50% and give the LEDs time to cool off.

In other words the LEDs would turn on for 4 minutes and then shut off for 4 minutes. This would continue until there was a cumulative 48 Hours of use.

The Only Name Brand flashlight I was able to test was MAG. The rest came from eBay, Walmart, Harbor Freight and Tools, local sporting goods stores......

so far the MAG was the best tested with regard to rated output and durability of the LEDs.

In fact I put the mag back on the burn in jig for an additional 360 hours and retested it the second test after 360 hours of use yielded results similar to the first within the margin of error.

4 months ago

1. I mentioned incandescent because you have claimed "30,000 Lumens would require about 2000 watts input. That means those batteries would need to put out about 540 amps" In other words, LEDs would have 15lm/watt efficiency, the same as incandescent bulb. While incandescent is a standard that LED manufacturers compare to (like '100W equivalent'), the LED takes much less power, thus - much less current from batteries (I see you have corrected this in later reply)
With 75lm/watt (it's possible that LED driven at high current will have lower efficiency) it is still ~400 watts, Maybe 120 amps on fresh batteries (taking into account internal and cable resistance, driver efficiency etc).

While 15lm/W it is possible with heavily overdriven LED, I doubt it is the case here (though I agree there is no chance it's 30,000 lumens, LED's can't give that output, even with liquid nitrogen cooling).

2. I agree , that the total capacity of the batteries should be measured in watt hours . However, in flashlight you have either buck or boost or buck/boost driver, regulated (by 7135's commonly) or - most common in 'hi-power WOW effect' lights - FET driver. That means the lights are capable of using 4,2V (or 4.35 with some cells). Sure, it will hold for a short time - and the internal resistance of the cells will play a role but nobody said it is 'till batteries last'. Most true 6k+ lumens lights aren't capable of sustaining the output anyway, due to overheating (I have Astrolux MF-01 , ~9000-10000 lumens output - and it steps down after 80-90 seconds from cold start, too hot to hold)
Again, no chance it's 30 thousands here.

3 As I said before, you have confused amp-hours with amp-seconds.

4. Cree XM-L2 are binned at 85C . Don't know about other, newer LEDs, will check. The LEDs in this light are XM-L of course, but... I think, with all our different opinions, we agreed it isn't 30 thousands :)

5. You were lucky with those ebay cells. Most of '5000+ mAh' cells have ~500 at best.

4 months ago

Luke P pretty. Hi Luke, I enjoyed reading your comment. Unfortunately you've made some common errors.

First of all you've confused theoretical laboratory performance with real world performance.

The latest generation of high output LEDs are capable of over 200 lumens per watt in the laboratory utilizing advanced active Cooling techniques to maintain a Junction temperature of 25c.

You might have been aware of this had you taken the time to actually read the data sheets and test results rather than the advertising hype.

As I'm sure you're aware, barring rare exceptions LED lighting in the real world does not use active Cooling to maintain a 25c Junction temperature.

Therefore it's assumed that LED lighting in the real world will operate at a Junction temperature exceeding 85 C with a light output between 106 and 160 lumens per watt.

Furthermore calculating a batteries capacity based on its peak voltage as it comes off the charger is ridiculous.

You either need to know the batteries measured capacity in Watts or you need to use averages.

By the way I've personally measured the capacity of good quality Samsung 18650 cells as well as cheap Chinese imported eBay specials 18650 cells which claim 5 amp hour capacity and they both average roughly 12 Watts capacity. As I'm sure you're aware 12 watts is 12 Watts regardless of the peak voltage.

And by the way HID lighting is not the industry standard for comparison.

incandescent is the standard by which LED manufacturers compare their lighting.

When you read the package an LED bulb comes and it says 100w equivalent they're not talking about 100w halogen they're talking about 100w incandescent.

As such it's probably best to stick to a single standard rather than moving the goalposts around to fit your argument

5 months ago

Well, first thing: 30,000 lumens would require 2000 watt input - for a halogen bulb.
Commercial LEDs efficiency can be higher than 150 lm/W, 100 lm/W is pretty common. So it would require 300 watts power. With 12 Wh per one 18650 cell it would be ~1/6 of hour - or 10 minutes.
Also, for someone being 'literate' it is pretty stupid mistake, confising amp-seconds (aka coulombs) with amp-hours.

PS. and fully charged Li-ion cell voltage id ~4,2V (3,6 - 3,7 is an average voltage).

5 months ago

Great review, thanka bro

5 months ago

No i po co naganiasz sztucznie ewentualnych naiwnych klientow na ten szajs? Przeciez dobrze wiesz ze to badziewie nie ma nawet tysiaca lumenow. Za ta cene mozna miec naprawde porządna latarkę.

7 months ago

No nie - 12 x XM-L T6 to z 4 tys lumenów można dać spokojnie, przy 1,5A na diodę - osiągalne w końcu - da radę. Przynajmniej póki się nie rozgrzeje :) Jak dobrze zrobiona to 6-7 tys też wyciągnie. Dopóki się nie rozgrzeje. czyli może z minutę. Wbrew pozorom może być dość wydajna, bo stosunkowo niewiele prądu na diodę idzie.
Oczywiście przy założeniu że to faktycznie XM-L T6 :)

6 months ago

+lasyk100 chyba się skuszę na tą C8 i zrobię porównanie side-by-side te małe convoye widziałem, ale strasznie się toto grzało

7 months ago

Convoy s2/s2+ z diodą c4 t6 bądźconvoy c8 z hpl-hi. Konkretny szperacz za małe pieniądze. Później zanflare f1 świecąca całkiem szeroko i HaikeLite HT08.

7 months ago

+lasyk100 to Chińskie lumeny ... nazwa zgodna z opisem sprzedawcy, a ile faktycznie ma ...HGW ale świeci jak diabli, a jakążto „porządną” latarkę za 75-8zł byś polecał?

7 months ago

love the smoking beard

7 months ago

how to order?

8 months ago

On AliExpress at the link shown in the comments https://goo.gl/Cd4HVk - AliExpress is essentially like Ebay but with sellers direct from China, therefore you are not paying any middleman.

8 months ago

I have one similar that supposedly uses 4 18650 batteries also. There are slots for four, but only 2 will fit. And get this: the light operates with only one battery installed. What gives?

8 months ago

+guest that's weird on the fit, maybe designed for the narrower batteries, but then, those are also shorter - wouldn't reach. As for working with only one... that's normal ... they run in parallel- the voltage doesn't change, only current and capacity.

8 months ago

I have the 7 LED version and it is No where near the advertised 10,000 lumens but is is a fun light! If you want a really powerful soda can size flashlight check out the Acebeam X80 at a true 25,000 lumens.

9 months ago

There is a true 30K+ lumens beast, but then again the price tag is also heafty https://goo.gl/jhG45L

5 months ago

30,000 Lumens my ass!! ......that, combined with the IDIOT showing it off equals unequivocal False Advertising (Fraud).

11 months ago

I have a light meter on the way and hopefully will arrive after new year, so that I will be able to perform an actual measurement. Would love though to be able to compare it with this https://goo.gl/jhG45L

5 months ago

Well, you could at least put 'lumens' in quotation marks. Though jon's comments was plain rude.

6 months ago

+jon Neat duh captain obvious don't you know it's Chinese lumens :) no way to measure the output nevertheless still bright as hell

11 months ago

how long do the batteries last please

1 year ago

Use Panasonic 18650 batteries

1 week ago

Maximum real capacity of 18650s is ~3600 mAh.

6 months ago

Sorry I mean how long with the flashlight stay lit from full batteries

1 year ago

Difficult to say - depending which 18650 cells you install ... with my supposedly 5600 capacity ones I still didn't charge them after couple hours use

1 year ago