I present you with Giggles, the most hardcore BLF thrower in the World.

So the 91mOhmF shown on this driver is .091Ohm resistance?

Looks good, mine showed 2.45A at the emitter tested through an 18GA loop at the MCPCB with a UniT clamp meter.

Edit: Looks like the large MOSFET is a different value, if one were going to the 12V XHP-70.2 would a change here be beneficial?

I have been discussing upgraded components with DEL. I ordered them today actually. We will post them once tested.

Although in stock form the driver is good for 5A at 12V (aka, same as 10A at 6v). I have my xhp70.2 setup for 6A right now (.040 ohm 2512 resistor) and it is working good so far but the driver runs hot.

The FET that is on it is hard to beat, DEL did find something that is possibly a bit better when combined with some other changes though. The goal is to allow ~6A reliably with 8A bursts. More then this would need an FET driver.

Ok, yeah, I researched that Alpha/Omega MOSFET and it appears the specs are on the D417 model number, the lower numbers are apparently a batch number. :wink: Specs on it look good at our voltages, stepping down to 6V we could probably find better but at 12V this one is pretty nice.

I was just wondering because I still have some Vishay-Dale 70N07 from when Comfychair first started the FET direct drive craze, this is (I think) an N channel MOSFET though, so it wouldn’t work here.

(I know, right? I’ve been building direct drive driver’s since we were flipping the 70N07 upside down on a stripped Qlite and Tombstoning a resistor under the gate leg. We’ve come a long way, baby, to get where we got to Today!)

Edit: I know, I’m old, they don’t advertise Virginia Slims to women on the TV anymore.

Yeah, the FET for a buck driver plays by very different rules compared to the normal FET drivers we build around here. Switching losses make up as much or more then the resistance losses in this case.

Basically for the stock buck setup (which I prefer since it offers at least some level of regulation) 6-8A is about the best we can hope for with this driver. Although that is still well over 8000 lumens and enough to max out the xhp70.2 before massive diminishing returns.

Hi

I am searching to buy a giggle flash light does anyone know maybe where i can get one my gmail is

Serfonteinjuandre@gmail.com please message me if you help me thx

Just go to this thread and ask to be put on the list for a light. They will add you.

I like this product

Texas Ace - Do you have any outdoor beamshots with XHP 70.2 on turbo?

I thought for sure he had those beamshots on this thread, but I think he only posted them in the main GT thread. Here is that post.

Thanks Jason, I was just about to go searching for that post myself. I also thought I have copied it over here already.

Ok, thanks to the generosity of some BLF members I was able to order some more xhp70.2’s to test along with some more centering rings.

First here is the output test of an xhp70.2 M4 4000K 80CRI emitter.

And compared to the P2 xhp70.2:

Like a lot of high CRI Cree LED’s it does better then you would expect. The Vf is much lower which makes the lumens/Watt almost equal between the LED’s and the output is better then expected as well.

At the lower power levels it is only slightly behind and at high power levels it is only around 8% behind vs the 14% you would expect.

Now the 80CRI version does appear max out sooner, which is expected due to the thicker phosphor layer.

Overall though, it is a great LED for the GT. The lower Vf means it will run in regulation for longer then the P2 version as well and the tint is great. You can notice the higher CRI in the beam. It is worth the minor losses IMHO.

Now I would not use this LED in an FET direct drive setup, it could easily pull way too much power and go way past peak output.

Next I tried installing it in the GT.

Like before I got around 1300m of throw with the 4mm tall centering ring or around 425kcd.

I then sliced the dome and took the readings again.

With the sliced dome 80CRI xhp70.2 at 6A (forgot to take a measurement at 5A) I got around 1500m of throw or 560kcd.

Less of a gain then the P2 version got with the sliced dome for some reason but still quite good.

Like the P2 the tint did shift some, it is noticeably more yellow now, it is not for everyone that is for sure. I am debating what I will do about it myself.

I played around with the focus height as well and it really comes down to personal preference. I get the highest readings around the stock 2-2.5mm but it also has a very noticeable donut hole. Not nearly worth the ~40m of extra throw it gives.

It takes about a 3.5mm high centering ring to mostly get rid of the donut hole and 4mm gets rid of it entirely. For the very minor trade off in throw, 4mm is what I would go with. Much nicer to look at a beam without a dark spot.

It gets noticeably hotter then the xhp35 version but that is expected since it is over twice the power.

Overall impressions are that the xhp70.2 is a fantastic mod for this light if you do not need to see things a mile away. Slicing the dome is not for everyone but for those wanting more throw at the cost of a bit worse tint, it is worth it.

I sure hope that I can get Lumintop to sell an xhp70.2 mcpcb for this light after the GB is over.

Looks dangerous(too bright…)but adorable :sunglasses:

The group buy is over…. but the info below will get you a better price than retail.
Welcome to BLF also…… :+1:
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whoaaa…international dishes are offered to guests… what is this?

Booom!

And the international dish is …. SPAM :smiley:

Cheers David

Spam

x 2……. :smiley:

Just flag it as spam. Kinda defeats the purpose by requoting it…

I did , I also replaced the link with 5xspam :smiley: