Cree XHP70 up to 4022 Lumens and XHP50 up to 2546 lumens - Multi-die leds.

15A power supply! That's pretty sweet. I have had mine go up over 10A before, but it's only rated for 10A so I'm not sure if something will break or go nuts if I push it that hard. I have used a buck converter to push the MT-G2s over 13A with the power supply at a higher voltage, but not direct drive.

Looks like after 9A-10A you're not getting much more output.

My XHP70 leds came today! LEDDNA sent me 10 of the 5000k XHP70 N4 3A leds. I already have the mcpcbs and the patients waiting on surgery, so it's going to be a long week-end. Billy did a great job of getting them out and they were packaged well and arrived quickly.

The four up is a light that used to be 4xP7 leds. Now it will be 4xXHP70 leds in series, with one of George's HBFlex drivers and a 6D Maglite with 5x26650 cells in it. 3 amps per led.

The other light is the SP03 and it will have 3xXHP70 leds at nine amps each. Well, maybe... I think it will have a custom FET driver in it, done by RMM. Not positive yet, maybe a 7135 driver.

That leaves me 3 leds for some Maglite mods.

I use a simple but very decent lineair power supply that goes up to 20A :-) , but only at 16V.

Thanks for that testing djozz, i have been wondering why Dale numbers is often higher, but the differences between your usual testing in steady state slowly ramping up the output and in flashlight blast at full power directly like he does it explains a lot.

O-L, do you plan do diffuse the reflectors to help eliminate the donut hole? Wondering if you’d use your patented clear overspray technique. Been thinking about that…

LEDDNA is pretty quick, and they had bins not available elsewhere. Rock on!

I don't know yet, if I have to, I will. I plan on doing some testing with a few reflectors I have laying around and see what happens. I plan on doing one led raised off the star surface, with copper, so I can try some different heights of reflectors, to see what effect the it has and see if there is any way to minimize the X mark. I will post the results, with photos.

Thanks Djozz, very useful graph as always! Seems like 10A is a pretty decent spot to run these LEDs at.

Would it be possible to also measure the heatsink temperature in your usual test? As it seems to have such a large effect on the output it would be interesting to see how the heatsink temp ramps up in relation to the the current ramp.

I don’t need 90 of them. I only need one. :expressionless:

“Thank you for your quote request, unfortunately I don’t have immediate stock.

Please do note, the factory MOQ is 90.

If you would like me to send in for a quote, I will need the following:

your company name and address
end customer name and location
project name
annual usage

Best Regards,
Hang Tra

Hang Tra
Arrow eCommerce Support”

10861

173 in stock, ready to ship. One at a time or however you like. :slight_smile:

Can anybody guess what 3 XHP70’s do on a A17DD-S08 driver with a high end Toshiba MOSFET?

SupFire M6? Almost dead cells even? (8 Efest IMR18350 Purple)

:bigsmile:

Just a stab in the dark here. 9522 OTF?

What high end Toshiba MOSFET?

I don’t remember any talk about a toshiba MOSFET only NXP or Vishay ones.

And i guess over 10000 :smiley:

G'Day Dale,

I am guessing about 15,000 to 18,000 Lumens OTF (with fully charged 8 Efest IMR18350 Purple)....

Btw, I want one of those..... ;)

Best Regards,

George

When I first tested it the cells were at 3.95V, almost dead, after the lightbox run. I didn’t run it just tested it. The first reading I got was 12,523 lumens.

So of course I charged the little cells!

13,903.5 lumens out the front, even low does 1408.

I lined up the emitters such that the line between dies pointed towards the middle. This put them diagonal to each other. And the donut hole is there at low, but decreases as the brightness goes up. Turbo is a stupid amount of light!

These are the 6500K variant, the first ones out.

This Toshiba is a new release, it has a plate on top like the one on bottom that solders to the driver. This is supposed to help with heat. It’s rated at 150A, 30V.

Can’t help but wonder what a good set of top end 18650’s would do….

Full out belly roll laughter! Damg, my face hurts! :bigsmile:

:bigsmile: :wink: 0:)

What is the exact name for the toshiba? so i can check if it is available on stores thats available to me like farnell.

But it still is a LFPAK56 sized FET? have there been any discussions in any thread’s on it here on BLF?

I saw it when in announcements when I was looking for something else, looked good, bought 5 of em. $3 each.

TPWR8503NLL1QCT-ND

I have no idea if this performs any better than the SIR800 or PSMNO9R or anything else. I’ll be using the SIR800 mostly now but thought I’d try this out. :wink:

That FET might actually do better on a driver like the LD-1.