[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

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JasonWW
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kaybi wrote:
I got a delivery today

An aspheric 120mm lens for the GT, straight from the guys at Optolife. I don’t quite recall who exactly recommended this specific lens and manufacturer, but at the very least, the quality is impressive. 0 blemishes or marks, no fingerprints, perfectly transparent.

It weights 580 grams, which is EXACTLY what the GT needed. It was gonna be too light otherwise.


Are you going to make your own Storm of Ra light?

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70.2, 26350 cells (4,100 lumen!), Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

10 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices 

Review Jaxmnve M1 Stainless 10180 Keychain light

sparkyDK
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goshdogit wrote:
NikolaS wrote:
I am planning to build a nice wooden box with black foam inside just for this bad boy Cool
I wanna build something like this to store my GT at home. Party

In case the sun dosent come up one day, break glass. Party

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Anyone else got shipping massage? Or it’s false alarm?

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NikolaS wrote:
Anyone else got shipping massage? Or it’s false alarm?

They are not suppose to ship until next week, so my guess at this point is it was a test shipment to make sure they have all their ducks in a row. I have not heard anything more about it though.

JasonWW
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It’s supposed to ship DHL Express, not eCommerce.

Unless these are the same thing? I’m not familiar with DHL at all.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70.2, 26350 cells (4,100 lumen!), Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

10 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices 

Review Jaxmnve M1 Stainless 10180 Keychain light

ZozzV6
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Wooohooo! My GT is ordered!

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ZozzV6 wrote:
Wooohooo! My GT is ordered!
LOLLOL
sgt253
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I paid on 05 December via PayPal and responded to Neal’s return email with phone number and BLF name. I’m not on the list on page #344. I hope I get the GT in this round…I know I am a bit anxious…LOL!

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I forgot that I responded Neal’s email with my phone number and BLF user name.
Big thanks for the team to make this come true. Thumbs Up
I will buy a plastic toolbox and make a foam insert for the GT and for a spare set of batteries. And I will 3D print a lens cap for it.Does Anyone has an accurete measurement of the bezel outside diameter? I start make the lens cap design now.

velocraig
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ZozzV6 wrote:
And I will 3D print a lens cap for it.Does Anyone has an accurete measurement of the bezel outside diameter? I start make the lens cap design now.

I was planning to do the same…I did a quick look and didn’t see OD for the bezel…anyone else know this spec??
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I found somewhere TA said 134mm

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sgt253 wrote:
I paid on 05 December via PayPal and responded to Neal’s return email with phone number and BLF name. I’m not on the list on page #344. I hope I get the GT in this round…I know I am a bit anxious…LOL!

He has not updated the last several payments yet, I am sure he will get to them soon.

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ZozzV6 wrote:
I found somewhere TA said 134mm

Correct, just checked again on the V2 and it is indeed 134mm

Pocket Torch
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Please add me to the group buy list. Thanks.

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New * Cree XD16* , extreme density LED. This could be a game changing LED for throw lights.
284 lumens per mm2. 726 Lumens at 2A 6W. 1.6mm*1.6mm Can’t wait to see how it respends to higher currents.

http://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xd16
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lawallac wrote:
New * Cree XD16* , extreme density LED. This could be a game changing LED for throw lights.
284 lumens per mm2. 726 Lumens at 2A 6W. 1.6mm*1.6mm Can’t wait to see how it respends to higher currents. http://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xd16
The black flat does 900lm/mm^2. You can also see from the datasheet that the 726 lumens at 2A is already at 400% output and it doesn’t look like it will increase to much more than 500 or 600% from the curve. Assuming that you can get 2-3x more lumens like other cree LEDs that would still be less than 600-900lm.
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JasonWW wrote:
It’s supposed to ship DHL Express, not eCommerce.

Unless these are the same thing? I’m not familiar with DHL at all.

Just received a DHL Express parcel (value USD$ 50) and DHL charged me USD$ 35 for “handling” and VAT.
(no custom on this parcel)
That bill came in the mail a week after I had received the package.

… DHL Norway say: that when a package is shipped with DHL Express, you agree that DHL prepays customs, VAT and any other public charges for the importer.

So be prepared for an extra bill..

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hunter1 wrote:
JasonWW wrote:
It’s supposed to ship DHL Express, not eCommerce.

Unless these are the same thing? I’m not familiar with DHL at all.

Just received a DHL Express parcel (value USD$ 50) and DHL charged me USD$ 35 for “handling” and VAT.
(no custom on this parcel)
That bill came in the mail a week after I had received the package.

… DHL Norway say: that when a package is shipped with DHL Express, you agree that DHL prepays customs, VAT and any other public charges for the importer.

So be prepared for an extra bill..


that’s the reason why i chose registered mail, no BS fee, slow but realiable

Forgot my pen

JasonWW
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lawallac wrote:
New * Cree XD16* , extreme density LED. This could be a game changing LED for throw lights.
284 lumens per mm2. 726 Lumens at 2A 6W. 1.6mm*1.6mm Can’t wait to see how it respends to higher currents. http://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xd16
I’m guessing the die size is the same as the package size at 1.6mm2. This die size puts it in the range of the xg-g2.

The xhp35 has a die size of 2.35mm2.

You could put a XD16 or xg-g2 in the GT and get even further throw, but with less lumens and the hotspot size will be much smaller. It becomes more laser like and not as usable.

My Convoy L6 thread with XHP70.2, Texas Avenger FET driver, Narsil v1.2 ramping firmware (old), lighted side switch and cut down SMO reflector. Lots of amp draws on stock driver as well. 

My Supfire L5-S thread with XHP70.2, 26350 cells (4,100 lumen!), Texas Avenger FET driver, NarsilM v1.0 ramping firmware and lighted side switch. My mini L6! 

10 NarsilM user videos for BLF Q8, GT, GT Mini and ROT66

Texas_Ace BLF Calibrated Lumen tube

Maukka Calibration Lights for DIY Lumen Measuring Devices 

Review Jaxmnve M1 Stainless 10180 Keychain light

Wieselflinkpro
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JasonWW wrote:
lawallac wrote:
New * Cree XD16* , extreme density LED. This could be a game changing LED for throw lights.
284 lumens per mm2. 726 Lumens at 2A 6W. 1.6mm*1.6mm Can’t wait to see how it respends to higher currents. http://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xd16
I’m guessing the die size is the same as the package size at 1.6mm2. This die size puts it in the range of the xg-g2.

The xhp35 has a die size of 2.35mm2.

You could put a XD16 or xg-g2 in the GT and get even further throw, but with less lumens and the hotspot size will be much smaller. It becomes more laser like and not as usable.

They do not have a middle terminal pad.
It has the same size as Nichia E21A. The board from clemence could fit: http://budgetlightforum.com/comment/1233168#comment-1233168

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Texas_Ace wrote:

And the sense resistor, a R050 2512 will put you just under 5A in turbo and be a little easier on the driver. An R047 will put you right at 5A but is a little harder to find.

These will typically have 1% or 0.5% tolerance today? I’m guessing that’s kind of necessary with such a low resistance, considering the typical application. If one could find a supply with a traditional “bad” 5% or even 10% tolerance, it would make things so much easier and you could just hand pick from a batch of 50 or 100. Big Smile
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Keisari wrote:
Texas_Ace wrote:
And the sense resistor, a R050 2512 will put you just under 5A in turbo and be a little easier on the driver. An R047 will put you right at 5A but is a little harder to find.
These will typically have 1% or 0.5% tolerance today? I’m guessing that’s kind of necessary with such a low resistance, considering the typical application. If one could find a supply with a traditional “bad” 5% or even 10% tolerance, it would make things so much easier and you could just hand pick from a batch of 50 or 100. Big Smile

Yes, you would want 1% for sure, they are not that hard to find in the USA, Digikey, Arrow or mouser will all have them but overseas it can be harder.

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Hi

Is there a specific plastic toolbox that you are using to make the case? just curious

Thanks

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Texas_Ace wrote:
Here is a list that Neal is working on of the orders so far. He said there are still another ~30 orders he needs to verify and update.

https://goo.gl/jDdeLc

The yellow highlights are orders he has not received (or not updated yet) the phone number for.

Please check the list for your order if you have any questions.

Paid with Registered Shipping but not on the list (yet) – please update! Party

' Lumen est omen '

Hope is no option!

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The big waterproof padded case at Harbor Freight is $40. It has enough room for the length of the GT with over 2 inches to spare. The biggest con about it is the plastic it’s polypropylene and doesn’t appear to be fiberglass reinforced. That’s probably okay for a few years of use, or indefinitely as a shelf queen, but I’d accept that for now until I find a nice deal on a tougher case.

The low mode should be lower.

Reviews: Efan IMR18350 700mAh 10.5A, <a href="http://

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Enderman wrote:
lawallac wrote:
New * Cree XD16* , extreme density LED. This could be a game changing LED for throw lights.
284 lumens per mm2. 726 Lumens at 2A 6W. 1.6mm*1.6mm Can’t wait to see how it respends to higher currents. http://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xd16
The black flat does 900lm/mm^2. You can also see from the datasheet that the 726 lumens at 2A is already at 400% output and it doesn’t look like it will increase to much more than 500 or 600% from the curve. Assuming that you can get 2-3x more lumens like other cree LEDs that would still be less than 600-900lm.

Cree’s 12/6/17 press release says it the first led to surpass 280lm/mm^2 lumen density. I know the top throwing emitters are in the 230-250 cd/mm^2. The units are different lm/mm^2 and cd/mm^2 but they are very related. So, does the Oslon chip really have 3.2x the lm/mm^2 of cree’s latest?
http://www.cree.com/news-events/news/article/cree-launches-industrys-fir...

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I don’t see the appeal of the XD16 in flashlights aside from showerheads. It could be really good for automotive lightbars though. Most could use more throw. With them mounting just above the windshield, too much light lands on the hood. I’m not holding my breath though. Almost all the cheap chinese lightbars don’t use Cree, and many of those that say they use Cree are lying.

The low mode should be lower.

Reviews: Efan IMR18350 700mAh 10.5A, <a href="http://

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lawallac wrote:
Enderman wrote:
lawallac wrote:
New * Cree XD16* , extreme density LED. This could be a game changing LED for throw lights.
284 lumens per mm2. 726 Lumens at 2A 6W. 1.6mm*1.6mm Can’t wait to see how it respends to higher currents. http://www.cree.com/led-components/products/xlamp-leds-discrete/xlamp-xd16
The black flat does 900lm/mm^2. You can also see from the datasheet that the 726 lumens at 2A is already at 400% output and it doesn’t look like it will increase to much more than 500 or 600% from the curve. Assuming that you can get 2-3x more lumens like other cree LEDs that would still be less than 600-900lm.

Cree’s 12/6/17 press release says it the first led to surpass 280lm/mm^2 lumen density. I know the top throwing emitters are in the 230-250 cd/mm^2. The units are different lm/mm^2 and cd/mm^2 but they are very related. So, does the Oslon chip really have 3.2x the lm/mm^2 of cree’s latest?
http://www.cree.com/news-events/news/article/cree-launches-industrys-fir...

Yes it does. High density chips from Cree were never about high luminance. They have a high lumen density in terms of package size. It’s all about putting really big dies on really small packages.

High luminance requaires a very different kind of LED. It needs to have a very low thermal resistance and needs to tolerate a very high current/power density. Effieciency will always be low when you go the the absolute limits.

BTW: there is a rough formula for the luminance based on lumens/mm^2 (area of die, not package). Just multiply the value with pi (only works for de-domed LEds which are basically lambertian emitters).

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lawallac wrote:
So, does the Oslon chip really have 3.2x the lm/mm^2 of cree’s latest?

Yes, but obviously not at the rated current.
You only get 900lm at about 6A which is like 400% the rated current.
The current-flux curve is better for the black flat than for the XD16. This means you get more improvement when you increase the current.
As you can see from the cree datasheet the 284lm/mm^2 is already half way up the curve so there isn’t much extra room for adding current.
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DHL Express notified me I will be getting mine on Monday. Typical, I won’t be there so my better half will discover the purchase Innocent

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