led more powerfull than ssc p7??

[AardvarkSagus]

Well, I can't recommend using it in that particular setup, but I can't wait to see someone utilize a Phlatlight SST-90 in a handheld illumination tool. Same Vf as Cree (if I remember correctly) and capable of 3.2A-9A. The fact that it is a single die 3mmx3mm is pretty sweet too. I'd love to see one in something that could handle it such as the Legion II.

 

[OddOne]

Well, I dunno if this is any sort of LED record, but I did pull 131,000+ lux out of a Lamina BL3000... (Pic's here in case anyone wants to see the test rig. And yes, my desk was a total disaster during that build!) Of course it isn't a flashlight at all: the LED is mounted to a solid copper rod and set into a 6" aluminum reflector that's part of a mini spotlight for stage/theatrical applications. It threw a laserlike beam that was visible for miles... 😀

The BL3000 is old tech now, as there are far better dice and phosphors available. I'd still love to see what someone could get with an array of say 96 Cree XR-E dice. 😱

 

[yellow]

what are waiting for cree for make a more powerfull led than scc p7?!?:hairpull:

well,
with single emitters the numbers on datasheet say Seoul, while the XR-E is better anyways,
so is the same with the MC-E compared to P7 (at least it is easier and much smaller to drive the series-quad die).
Nothing mystic.

Wait for the 1st better makers offering lights with the MC-E driven in series and with a good reflector, ...


PS: I dont see any problems in DRIVING those "superled" You are linking constantly.
They suck, cant be focused because of the large surface, ..., as has been mentionned a good times now.
But what troubles do You have in driving them?
"easy" step-up driver, again nothing mystic.

 

[Mjolnir]

I don't understand why he NEEDS a brighter LED when he already has a 24 watt HID. In order to drive any LED brighter than a P7, you would need a lot of heatsinking (and a lot of batteries for these higher voltage lights), so it would probably end up larger than the HID.
LEDs are for efficiency, not for brute brightness. That is what HID's are for.

 

[Kestrel]

I don't understand why he NEEDS a brighter LED when he already has a 24 watt HID.

What does need have to do with it?
http://en.wikipedia.org/wiki/Icarus_(mythology)

 

[moviles]

now i think this: the best way to make a very powerful safe and very small p7 flashlight its put p7 bin D here:

only 78mm x21mm, 900 lum keychain!!!!!

and use 16340 aw imr batteries :
http://www.cpfmarketplace.com/mp/showthread.php?t=184887

IMR16340 Specifications :

Nominal Voltage : 3.7V
Capacity : 550mAH
Lowest Discharge Voltage : 2.50V
Standard Charge : CC/CV ( max. charging rate 1.5A )
Cycle Life : > 500 cycles
Max. continuous discharge rate : 8C

8c x 0.55= 4.4 amp max
runtime will be arround 12 min

 

[mdocod]

now i think this: the best way to make a very powerful safe and very small p7 flashlight its put p7 bin D here:

only 78mm x21mm, 900 lum keychain!!!!!

and use 16340 aw imr batteries :
http://www.cpfmarketplace.com/mp/showthread.php?t=184887

IMR16340 Specifications :

Nominal Voltage : 3.7V
Capacity : 550mAH
Lowest Discharge Voltage : 2.50V
Standard Charge : CC/CV ( max. charging rate 1.5A )
Cycle Life : > 500 cycles
Max. continuous discharge rate : 8C

8c x 0.55= 4.4 amp max
runtime will be arround 12 min

😀
Exactly 🙂
:twothumbs:

And with LiMn chemistry cells, if you exceed the maximum recommended discharge rate, all you're really doing is wearing out the cell much faster, the likelihood of explosion is still very low, and when LiMn does explode there's a lot less oomf and fire behind it.

I would highly recommend taking your project down the LiMn road. Stepping up to an 18650 size host with an IMR18650 would be even better for practical runtimes, but the IMR16340 is a much smarter platform for you to be playing with at this point.

-Eric

 

[Nitroz]

Now it is just a matter of which one will fail first. The cell or the LED?

I've had a p7 turn blue while testing on a huge mag HS. It's only a matter of time moviles. Live and Learn.:shakehead

 

[Jackal-Head]

Again, not to be mean, but 1) please try to be slightly more grammatically correct, and 2) There IS NOT a multi emmiter LED more powerful than a P7. It does not exist, so noone will ever be able to find it.

Actually, there are, they're just not made for 3.7V. An op amp could be used to increase the voltage, but I would love to see how a single 14500 battery would deal with the required current. 😀 From a safe distance, of course. A few post mortem photos would be great.

Furthermore, I don't think the chapter on thermal management in the data sheet should be skipped over. The recommended heatsinks look quite impressive. :laughing:

 

[mdocod]

moviles,

If I understand the direction you are hoping to take a compact light, you probably wouldn't much care if it had any useful throw or not at this point. Most of the LEDs you have been tossing around ideas for are large format jobs that you wouldn't really be able to mount in a reflector that would have much effect on a beam of any sorts anyways...

So, with that in mind...

Have you considered mounting like 3 MCEs in the head of a small flashlight like that? You'd have to order more than 3 to match them for Vf as closely as possible, but at the end of the day, the way to get the most possible light out of such a small light is going to be a combination of moving to a more capable power source, (IMR cells), while at the same time improving efficiency at the emitters. Rather than over-drive the crap out of a P7, by wiring 3 MCEs all up in parallel you'll wind up running the emitters below maximum spec by a fair margin, but the results will be dramatically increased efficiency. You're not going to find much of any other LED on the market that could match this setup for lumens/watt.

Such a project would require some machining work be done to make a proper mounting surface, ideally of solid copper to really help wick away some heat.

1500+ lumens would be very possible if done right. Runtime would only be minutes but it would be very impressive non-the-less.

-Eric

 

[marschw]

You'd have to order more than 3 to match them for Vf as closely as possible,

Well, he could wire them all in series instead, (assuming he's able to provide it with ~45v).

 

[moviles]

finally I found it!!!!!!
sst-50
1250 lum 3.6v 5 amp 2.25x2.25 area 100lum/w(350ma/mm2) star 19$

http://www.luminus.com/stuff/conten...1_sst_50_w_product_datasheet_illumination.pdf
http://www.candlepowerforums.com/vb/showthread.php?t=231495

sst-90
2250 lum 3.6v 9amp 3x3 area 100lum/w star .(can be powered by one aw18650 imr, (max 16A)) 33$

http://www.candlepowerforums.com/vb/showthread.php?t=224644
http://www.luminus.com/stuff/conten...2_sst_90_w_product_datasheet_illumination.pdf

the big broters:

cst-90 2750 lumens 13.5 amp 3.4 v(can be powered by one aw18650 imr)

http://www.luminus.com/stuff/content...lumination.pdf

cbm-360-w 4500 lumens 12v

http://www.luminus.com/stuff/content...lumination.pdf

http://www.luminus.com/

 

[Outdoors Fanatic]

If you are happy about having a runtime of 10 secs and 1/4 of the theoretical claimed output due to the massive generation of heat, then go for it...

 

[moviles]

If you are happy about having a runtime of 10 secs and 1/4 of the theoretical claimed output due to the massive generation of heat, then go for it...

sst-90 powered with one aw 18650 imr 16amp max 1600ma/h:

1600ma/9a = .016h x60 = 10.6 minutes runtime (if the current was maintained in 9A)

2250 lum for 10 minutes its ok for me

I can make a homemade driver ,in low runtime will be much more

 

[Outdoors Fanatic]

sst-90 powered with one aw 18650 imr 16amp max 1600ma/h:

1600ma/9a = .016h x60 = 10.6 minutes runtime (if the current was maintained in 9A)

2250 lum for 10 minutes its ok for me

I can make a homemade driver ,in low runtime will be much more

haha! We know better around here, sorry... Just try to make that cell deliver true 1.600 mAh under 9A.

You can make a homemade driver, but you can't modify the physical laws of the universe. You can't have 2250 lumens for 10 minutes on such cells, especially not in a flashlight form factor. Cell capacity and heat are your main enemies here.

 

[moviles]

haha! We know better around here, sorry... Just try to make that cell deliver true 1.600 mAh under 9A.

You can make a homemade driver, but you can't modify the physical laws of the universe. You can't have 2250 lumens for 10 minutes on such cells, especially not in a flashlight form factor. Cell capacity and heat are your main enemies here.

hmmmm true, runtime will be only with aw 18650 imr at 9A:

1.35a/h /9 A= 0.15h x60 = 9 minutes

 

[evenchaos]

You can make a homemade driver, but you can't modify the physical laws of the universe. You can't have 2250 lumens for 10 minutes on such cells, especially not in a flashlight form factor. Cell capacity and heat are your main enemies here.

And why not? Capacity: already replied, heat? just add a real copper heatsink, fan and some ventilation slots.

 

[Outdoors Fanatic]

And why not? Capacity: already replied, heat? just add a real copper heatsink, fan and some ventilation slots.

Ok, then build one and have it tested in a real Integrating Sphere. Until there, I'll keep affirming that you can't crank it out real 2250 lumens out the front from such setup: (SST-90 LED + AW IMR 18650 mounted in a flashlight). And I'm willing to bet my SureFire collection on that!

Perhaps, you might be able to accomplish that in a lab using some form of cryogenic heatsinking...

 

[moviles]

I am not going to obtain 2250 lumens but I will obtain more that with a p7

without black holes in the center and better with asphericals

in the low mode runtime can be a lot

 

[yellow]

I would really be grateful for You to try them and give us Your findings