The BLF GT70 "Giggle Monster" is coming! 7,500lumens, 1,500m throw!

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Newlumen
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Yes.. one of the Blf gt xhp70.2 with DTP MCPCB 12v and TA driver got over 7000 lumen and about 600kcd..

a_idiot
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Signed up for 1 with lens + batt (and maybe reflector)

Kinda hoping for a CW tint though I’ll still prob end up with NW

shirnask
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Signed up for 1 several hours ago – no email – checked spam folders

hazG
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From: hazg

Signed up for:

1 - Giga monster XHP 70.2  CW or NW

1 - Conversion Kit

1 - Spare lens

Pending on Price, maybe Batteries

★★★★★★★★★★★★★★★★★★★★★★★ ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★

 Email arrived to confirm part of the survey, no quantities listed on the Giga Monster or Qty on Conversion kit.

★★★★★★★★★★★★★★★★★★★★★★★ ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★

GT70 Has Landed August 30, 2018

Hezekiah
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Signed up for 1 – Conversion Kit

Thank-you

klrman
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Can they avoid sending the GT70 to Canada by courier otherwise this could end up a $500 CAD light after custom duties, brokerage fees and what not are added?

Texas_Ace
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klrman wrote:

Can they avoid sending the GT70 to Canada by courier otherwise this could end up a $500 CAD light after custom duties, brokerage fees and what not are added?

I do not know how they will ship to Canada. I don’t remember hearing a lot of issues with Canada on the last GT group buy though.

Texas_Ace
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Hezekiah wrote:
Signed up for 1 – Conversion Kit

Thank-you

I checked yours and do not see a reservation for you. Were you using your phone by chance? Have you tried another browser?

hazG
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Question Of The Day

Hate to bring politics into this:

With the tariffs that will be going into effect on Friday how is this going to effect the prices on all that we do? 

 

GT70 Has Landed August 30, 2018

kntx
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I’m in for a conversion kit and a lens,maybe a reflector – confirmation received3 by mail

sandro
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Signed up for 2 – Conversion Kit

Enlightened1
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Signed up for:

1 x GT70 NW
1 x (8) 30Q Batteries

Maybe on (1) extra lens depending on price

YoFlash
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Signed up for 2 full lights. Prefer neutral white.
Would like extra reflector, lens and cell carrier for both
Would like one set of batteries, not two.

On a side note: I would also like to request an option for the shorty tube. Tried ordering direct from Neal but was eventually told they were out of stock and had to raise a Paypal disbute to get my $10 back.

The Lurker

klrman
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Dumb question maybe, but with the short tube, is lumens/lux  the same but only shorter run times?

JasonWW
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klrman wrote:

Dumb question maybe, but with the short tube, is lumens/lux  the same but only shorter run times?


With just 4 high drain cells you’ll get a little more voltage sag so you lose just a little bit of output, but not much. So it’s mainly run time that you’ll notice.

It’s kind of like running the Q8 on 4 cells or 8 cells. 4 gives it plenty of power. 8 gives it a little extra boost plus the longer runtimes.

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

klrman
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Got it, thanks JasonVW. 

FmC
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Signed up for 1 conversion kit.

Beer
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OMG, You guys are killing me…..

solRNY
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for the conversion kit,
will there be a need for refocusing, dome vs slice dome?
can we buy a spare centering ring?
can the centering ring to the led be the shape of the led square instead of circle?
will there be xx awg wires provided from driver to led?

how many amps thru the led using the new driver?

Lothar
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Sorry if I missed this, but when will the group buy close?

Nguyen
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Signed up for 1 – Conversion Kit, 1 – Battery Carrier.
Thank-you

JasonWW
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Lothar wrote:
Sorry if I missed this, but when will the group buy close?

It hasn’t begun, lol.
Right now we are just taking orders/reservations to see what people want. It may be a month or two before orders are put in and the group buy goes live. Orders can then be finalized and paid for. There is currently no set deadline to pay. That will have to be determined later.

I think the rough time line is for the group buy to finish in 3 months. So if your interested you can fill out the form now and set money aside for later. Updates will be in post #1.

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

Bozlight29
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Signed up for the conversion kit. 

kaybi
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I have another question.

I have my doubts about the XHP70.2 being able to survive for long against a FET driver with 8×18650 behind it. Texas Ace claims the driver can output 250 watts. As per TA’s own measurements, the XHP70.2 outputs 10k lumens at 187 watts, at which point it is already starting to be so overdriven it has started to lose output. That is at a forward voltage of 15.6volts, when a FET driver will push voltage directly from the batteries, at about 16.8 volts on a fresh set of batteries. That means 5.5 amps/battery (190watts, maximum tested by TA, already harmful for the led) or 7.5 amps/battery (250 watts the driver is claimed to be able to sustain). 7.5 amps is not such a high amperage that a set of high discharge batteries, like the 30Q batteries that may be offered for sale bundled with the light, would sag overly from it.

I’m guess you guys have found a solution to this problem, but I wonder what it is.

JasonWW
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TA has tested it in reality and it works/survives. He can probably explain why better than I can.

I haven’t gotten all the test numbers from him on amp draws, etc… which is why this info is blank in the Specs area. The amp draw may also vary a bit based on the particular emitter used. This has not been decided on yet.

Maybe he can fill in some of those details later today.

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

JasonWW
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solRNY wrote:
for the conversion kit,
will there be a need for refocusing, dome vs slice dome?
can we buy a spare centering ring?
can the centering ring to the led be the shape of the led square instead of circle?
will there be xx awg wires provided from driver to led?

how many amps thru the led using the new driver?


It’s early days yet. This will be answered as soon as it’s known.

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

Schkü
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Signed up for:

1 x GT70
1 x Conversion kit

Texas_Ace
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YoFlash wrote:
Signed up for 2 full lights. Prefer neutral white.
Would like extra reflector, lens and cell carrier for both
Would like one set of batteries, not two.

On a side note: I would also like to request an option for the shorty tube. Tried ordering direct from Neal but was eventually told they were out of stock and had to raise a Paypal disbute to get my $10 back.

Yes, I am working on the short tube being an option, just waiting for confirmation and final price.

Texas_Ace
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solRNY wrote:
for the conversion kit,
will there be a need for refocusing, dome vs slice dome?
can we buy a spare centering ring?
can the centering ring to the led be the shape of the led square instead of circle?
will there be xx awg wires provided from driver to led?

how many amps thru the led using the new driver?

The new centering ring that will come with the kit should focus the light, although the xhp70.2 has a lot of adjustment room depending on if you want maximum throw or least dark spot in the middle of the beam.

So it is possible that people may want to refocus it anyways for their own preference but I do not expect lumintop to offer different centering ring options and they have not confirmed with me what focus they are going with.

I have some 3D printed centering rings I could release for people to print out if needed. or I could sell the rings themselves as well worst case.

I do not think spare centering rings will be an option.

It will have a circle in the middle, square centering rings can cause issues like snapping the LED off the mcpcb when tightening the reflector if it grabs for some reason.

It should be 20AWG wires like the normal GT.

The Amps will depend on the exact LED they find, which is why they are not listed yet. In my testing I have seen 9-10A being the normal range with 8 full high drain cells.

Texas_Ace
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kaybi wrote:
I have another question.

I have my doubts about the XHP70.2 being able to survive for long against a FET driver with 8×18650 behind it. Texas Ace claims the driver can output 250 watts. As per TA’s own measurements, the XHP70.2 outputs 10k lumens at 187 watts, at which point it is already starting to be so overdriven it has started to lose output. That is at a forward voltage of 15.6volts, when a FET driver will push voltage directly from the batteries, at about 16.8 volts on a fresh set of batteries. That means 5.5 amps/battery (190watts, maximum tested by TA, already harmful for the led) or 7.5 amps/battery (250 watts the driver is claimed to be able to sustain). 7.5 amps is not such a high amperage that a set of high discharge batteries, like the 30Q batteries that may be offered for sale bundled with the light, would sag overly from it.

I’m guess you guys have found a solution to this problem, but I wonder what it is.

It should survive fine, the resistance of the springs in the carriers drops the power so the max current should only be ~10A or so depending on the LED selected. This is quite reasonable and many have driven it this hard or harder. It actually makes peak output at around ~12A so driving it harder could see slightly higher numbers.

The 250 watts is simply what the driver has been tested to with multiple xhp70.2 LED’s connected. In this light with a single LED it is around 130-150w.

As long as the LED’s are properly reflowed to the mcpcb (which they should be) and thermal paste is used between the mcpcb and the shelf, it should not have a problem.

I have run the prototype light on turbo until the cells died and it had no issues even though it got to 91C.

If you are worried you can simply not use turbo and only use the top of the ramp which has a lower max power.

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