Endurer 4xCree MC-E 4x18650 3000+ lumens

[pepko]

Yeeeeaaahhh

I made it !!!

Some other photos here:
http://forum.fotonmag.cz/index.php?s=&showtopic=153&view=findpost&p=5209


And here is the comparison with Aurora AK-P7 (sku.12624) and with Ultrafire C2@SSC P7 DSVNJ + Sekonix Col#1 narrow optic

http://forum.fotonmag.cz/index.php?s=&showtopic=153&view=findpost&p=5220

 

[DaFABRICATA]

That heatsink is a BEAST!!!

How the hell did you cut through the copper and form the circle?

I bet that suckers bright!

 

[Aircraft800]

That Light Is Insane!! I'll bet the head gets HOT real quick! Is the emitters wired 2s2p?

 

[shortstack]

WOW!!!!!! we need more info. did you buy it somewhere?

 

[phantom23]

As "suivant7" said - outdoor beamshots!😀 (at least from the window)

 

[modamag]

Looks like the HS is mill out.
Great job with the locking threads. It significantly xfer the heat to the body.

Now we need out door beamshots.
PS: what the heck is a Aurora AK-P7, I must be out of touch.

 

[phantom23]

PS: what the heck is a Aurora AK-P7, I must be out of touch.

As 'pepko said. sku.16264 From DX.

 

[griff]

Looks like the HS is mill out.
Great job with the locking threads. It significantly xfer the heat to the body.

Now we need out door beamshots.
PS: what the heck is a Aurora AK-P7, I must be out of touch.

I don't think he used a mill...
http://forum.fotonmag.cz/index.php?act=attach&type=post&id=952
I

 

[Aircraft800]

I don't think he used a mill...
http://forum.fotonmag.cz/index.php?act=attach&type=post&id=952
I

Griff

That picture looks like a Flintstones wheel! It's amazing that he was able to make it turn out so good!

Excellent Work again!

 

[pepko]

Thanks for your feedback .

It's made from flashlight body I bought on DX.
http://www.dealextreme.com/details.dx/sku.14328

Heatsink is made from 10mm thick copper block. I don't have mill. I used drill and rasper. It was hard manual work 🙂))

The leds are from cutter (M-bin WH). They are wired 4p4s direct drive with 0.33ohm resistor. But I have to increase resistor, because current is too high (3.6A).

This is the optic
http://www.dealextreme.com/details.dx/sku.1915.

Outdoor beamshots are here in order: control shot, SmallSun Cree R2, Aurora AK-P7, Endurer and the last is Osram 20W halogen MR16 10dg.
Camera settings: ISO100, F2.8, 8s

http://forum.fotonmag.cz/index.php?s=&showtopic=153&view=findpost&p=5309

 

[AlexGT]

On the Mce beamshot, what is the distance to the trees? Do you gen any donut hole in the beams? How hot does it get? Looks pretty interesting design.

 

[pepko]

On the Mce beamshot, what is the distance to the trees? Do you gen any donut hole in the beams? How hot does it get? Looks pretty interesting design.

The distance is about 25m and height about 15m.

I don't see any donut hole.

It gets very hot in few minutes. But I have 3 mode switch now. Medium mode with 1ohm resistor and low mode with 2.2ohm. So it doesn't have to get so hot if I don't want it. On low mode it looks like more than 1000 lumens.

http://forum.fotonmag.cz/index.php?s=&showtopic=153&view=findpost&p=5389

 

[naked2]

With similar performance to your Aurora P7, I have this drop-in module. It used to impress me, until I saw your outdoor beamshots! 😱 Great job!

Now I can hope DX will come up with something like yours in a drop-in module! 😗 Or mabe you could make and sell them!

 

[msxtr]

Wowwwwwww, you are a freak!!!!!!!!!

Greetings - Saludos

msxtr

 

[toby_pra]

Wow that looks great!!!😀

 

[KowShak]

Are you sure you've got enough extenders in that light?

 

[pepko]

Are you sure you've got enough extenders in that light?

Yes.

Why ?

 

[jaygrant]

Griff

That picture looks like a Flintstones wheel! It's amazing that he was able to make it turn out so good!

Excellent Work again!

pepko

Yes Excellent work, no joke, ingenuity and good use of the resources you had. Copper is the best conductor, much better than all the fancy aluminum heatsinks out there. Great Job!:twothumbs

 

[2xTrinity]

pepko

Yes Excellent work, no joke, ingenuity and good use of the resources you had. Copper is the best conductor, much better than all the fancy aluminum heatsinks out there. Great Job!:twothumbs

http://www.ibrtses.com/electronics/cooling.html -- I found this random website talking about the advantages of aluminum vs copper for heatsinking.

Copper is the better heatsinking material by volume. 40% better heat capacity, 70% better heat conductivity. Note the heat capacity is as relevant if not moreso than the conductivity in a design like this where the surface area/ volume ratio is relatively small.

Aluminum is the better choice if weight and/or cost are bigger concerns.

 

[jaygrant]

http://www.ibrtses.com/electronics/cooling.html -- I found this random website talking about the advantages of aluminum vs copper for heatsinking.

Copper is the better heatsinking material by volume. 40% better heat capacity, 70% better heat conductivity. Note the heat capacity is as relevant if not moreso than the conductivity in a design like this where the surface area/ volume ratio is relatively small.

Aluminum is the better choice if weight and/or cost are bigger concerns.

Got it, so considering the very small volume in a flashlight, using aluminum is better, since you are really only absorbing heat, not dynamically getting rid of it and aluminum is lighter and less expensive. But no matter what, once it gets hot it stays hot with no place to go, so copper is not an advantage. Sorry, I'm too used to computers where there's an air interchange in a larger area, so copper can do it's job better and heat can be removed from the source dynamically, such as using cooling fans.

Sorry to hijack the thread, it wasn't my intention.