Finally finished: Triple Seoul P7 Mag-Lite

Der Wichtel · Apr 6, 2009

I have finally finished my triple P7 Mag-Lite.

3x Seoul P7
3x custom reflectors
1x custom heatsink
1x driver
4x 18650 batteries are used to power the light up
1x ultra clear front glas

That's it 😀

Beamshots will follow this evening

Edit:

And now beamshots:

Controlshot

Light turned on. Distance to those white things is about 80-90m

Same distance from the other side:

Edit: A few more pics...

The Hotspot underexposured:

ICUDoc · Apr 6, 2009

Nice one der Wichtel! Looks great- I made a similar one for an M6 and that's lots of fun.
What reflectors are they? I see you call them custom, but do you have a source?

Der Wichtel · Apr 6, 2009

My dad knows a reflector company. I gave them my drawings and they built them for me

rayman · Apr 6, 2009

Nice light :thumbsup:. Came out very nice 😀.

rayman

tx101 · Apr 6, 2009

Very NICE :twothumbs

What current are you running the light at ?
How hot does it get ?
Will you be selling this as a kit ?

Very COOL 😎

Der Wichtel · Apr 6, 2009

The leds are driven at about 2.8A to 3A.
After 2-3 min. the head gets a little bit warmer than my hand and stays in this condition.
The heatsink conducts the heat to both the tube and the head therefore the heat can be better managed.

I can provide the heatsink, reflectors and driver as a kit but they must be selfassembled. As you can see in the video it takes pretty long to build up everything.

tx101 · Apr 6, 2009

As you can see in the video it takes pretty long to build up everything.

The video is 9.09 minutes long ... a pretty fast build in my book 😉

sygyzy · Apr 6, 2009

I love how Der just happens to know a reflector manufacturer. I am guessing reflectors is a niche market so how many could there possibly be in the world? From his other link, he also knows an annodizer. I wish I lived in Germany so I could see this expert modder in action!

Al Combs · Apr 6, 2009

After watching the video, are your P7's wired in series or in parallel 😕

Der Wichtel · Apr 6, 2009

they are wired in series. It just looks like on that pic as if both wires are coming out of one pin but both pins are on the left and right side and the wires are coming out on the top middle side of the led

Al Combs · Apr 6, 2009

It was a little hard to tell from the picture. The only reason I wondered was you said the light only gets a little warmer than your hand after 3 minutes use.

Der Wichtel said:
The leds are driven at about 2.8A to 3A.
After 2-3 min. the head gets a little bit warmer than my hand and stays in this condition.

I have a single P7 MagLite that gets warm after three minutes. How do you have 30 watts worth of LED's in continuous use without getting any hotter than just warm to the touch? That is a pretty big heat sink. Perhaps it's just storing the heat? How much longer that 3 minutes have you run it? Did you use the MX-2 between the heat sink and the head?

Very nice build BTW. Any idea what kind of price you are talking about in terms of a kit? I'd be happy with a triple P7 even if it wasn't a continuous use light.

Der Wichtel · Apr 6, 2009

Just finished some measurements with the tempsensor of a cheap multimeter.

The probe is not flat which is why I added some thermal paste and fixed it with some adhesive foam tape.

After about 7 minutes the value was very constant and I did a second measurement at 10 minuts. It showed me 38°C. Anyway you have to add 5°C to 8°C for the real value :thumbsup:

I can offer the kit whichs has Heatsink, 3 refectors, driver and o-ring (in order to avoid scratches made by the heatsink on the lens) for 45€.

p moore · Apr 6, 2009

Thats just SICK, I like it though.

cnjl3 · Apr 6, 2009

Very nice! I am still using my single P7 with your driver and it still kickin' butt! Your video makes it look pretty simple. Sounds like you are gonna get a few orders.

wquiles · Apr 6, 2009

Compared to several other 3x P7 or MC-E's projects your temps seem a little bit too low, but this is a very impressive project - nicely done :twothumbs

Will

Der Wichtel · Apr 7, 2009

Thanks,
another 3x P7 light from someone else gets only 30°C warm
http://www.messerforum.net/showthread.php?t=65107
It has better heatsinking than mag-lites but I think the 43°C to 46°C of my light is realistic compared to that one

Besides a lot of P7 lights are direct driven. they often forget that the current will rise up if they remove the multimeter because of its internal current measuring resistor. For example if you measure 3A then the current can rise up to more than 3.5A if the multimeter is removed and that causes more heat

gmcjimd · Apr 7, 2009

Hi there Der,

That is a great looking light! Are you ready to sell the kit?

Thanks
Jim

Der Wichtel · Apr 7, 2009

Not yet. I think they will be available on 15th or 16th.

Der Wichtel · Apr 7, 2009

Ok, it seems like the pot was turned when I put everything together --> leds underdriven. The light is getting pretty warm now after a few minuts but it is still in the working specs I think

sylviocc · Apr 7, 2009

Driver??

What driver do you use???

Regards.

Finally finished: Triple Seoul P7 Mag-Lite

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