The BLF GT70 "Giggle Monster" is here! 7,500lumens, 1,500m throw! Group buy Closed!

2824 posts / 0 new
Last post
UserM4
Offline
Last seen: 2 months 3 weeks ago
Joined: 02/10/2017 - 12:34
Posts: 36

Awww crap. Paid full price for the spare carrier. Oh well. I think they deserve a little something for all the hard work. Can’t wait! Wait… how long is shipping to California?

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 03/24/2016 - 07:44
Posts: 8658
Location: Everything is brighter in Texas
UserM4 wrote:
Awww crap. Paid full price for the spare carrier. Oh well. I think they deserve a little something for all the hard work. Can’t wait! Wait… how long is shipping to California?

They are supposed to get the LED’s in late this week or early next week is the last I was told. Once that happens they have to get them reflowed to the mcpcb’s and then they can start packing orders. I would guess they will start shipping in 2-3 weeks.

Once shipped it generally only takes a few days for DHL to deliver to the USA.

UserM4
Offline
Last seen: 2 months 3 weeks ago
Joined: 02/10/2017 - 12:34
Posts: 36

Nice! Just in time for daylight savings!

JorisFRST
Offline
Last seen: 6 days 4 hours ago
Joined: 06/22/2017 - 04:22
Posts: 94
Location: Belgium
Yourrid
Yourrid's picture
Offline
Last seen: 4 days 2 hours ago
Joined: 05/17/2013 - 09:41
Posts: 1057
Location: NE ATL

Received the email saying the NW conversion kits are ready. The website allows me to order the CW kit as well… are those ready? The email didn’t explicitly say so I just want to double check Thumbs Up

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 03/24/2016 - 07:44
Posts: 8658
Location: Everything is brighter in Texas
Yourrid wrote:
Received the email saying the NW conversion kits are ready. The website allows me to order the CW kit as well… are those ready? The email didn’t explicitly say so I just want to double check Thumbs Up

Yes, both kits are ready, technically the CW kits were ready a little bit ago but they wanted to wait until they had both tints before selling them.

Yourrid
Yourrid's picture
Offline
Last seen: 4 days 2 hours ago
Joined: 05/17/2013 - 09:41
Posts: 1057
Location: NE ATL
Texas_Ace wrote:
Yourrid wrote:
Received the email saying the NW conversion kits are ready. The website allows me to order the CW kit as well… are those ready? The email didn’t explicitly say so I just want to double check Thumbs Up

Yes, both kits are ready, technically the CW kits were ready a little bit ago but they wanted to wait until they had both tints before selling them.


Awesome! Placing my order now for a CW kit Beer
solRNY
Offline
Last seen: 3 hours 54 min ago
Joined: 03/27/2017 - 17:24
Posts: 217
Location: Syracuse, NY

what is the expected run time in hi with the conversion kit?
can you use the short tube and long tube together to create a 3S carrier for more run time?

Newlumen
Newlumen's picture
Offline
Last seen: 4 days 20 hours ago
Joined: 05/27/2017 - 00:19
Posts: 2092
Location: United states
solRNY wrote:
what is the expected run time in hi with the conversion kit? can you use the short tube and long tube together to create a 3S carrier for more run time?

You will need a coupler.

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 03/24/2016 - 07:44
Posts: 8658
Location: Everything is brighter in Texas
solRNY wrote:
what is the expected run time in hi with the conversion kit? can you use the short tube and long tube together to create a 3S carrier for more run time?

The GT70 runtime (conversion or not) will depend on the brightness level.

On moon mode it should last months.

On turbo it might last an hour or 2

At the top of the ramp it should last around 2-4 hours

Anywhere in between, will have runtimes between there.

hazG
hazG's picture
Offline
Last seen: 1 year 5 months ago
Joined: 11/05/2017 - 09:46
Posts: 126

RIGHT OFF THE HAZG PRESS

Next Update: September 15, 2018

GT70 Has Landed August 30, 2018

hazG
hazG's picture
Offline
Last seen: 1 year 5 months ago
Joined: 11/05/2017 - 09:46
Posts: 126

Are there any beam shots of the GT70 Cw & Nw and whatever other tint and GT35?

GT70 Has Landed August 30, 2018

yclongthrow
Offline
Last seen: 1 week 2 days ago
Joined: 08/20/2011 - 14:21
Posts: 368
Location: USA
Texas_Ace wrote:
solRNY wrote:
what is the expected run time in hi with the conversion kit? can you use the short tube and long tube together to create a 3S carrier for more run time?

The GT70 runtime (conversion or not) will depend on the brightness level.

On moon mode it should last months.

On turbo it might last an hour or 2

At the top of the ramp it should last around 2-4 hours

Anywhere in between, will have runtimes between there.

Any idea on the max sustainable/stable lumens?

Thanks

NITEbiker
Offline
Last seen: 2 months 1 week ago
Joined: 09/30/2015 - 07:51
Posts: 27
Location: Australia

yclongthrow wrote:
Any idea on the max sustainable/stable lumens?

Thanks

It will NOT be turbo, that is for sure.

Top of the ramp might be relatively stable for a while but I wouldn’t say for certain how bright that is. I’ve got my 8 30Q cells charging so will see what the go is using the ceiling bounce app with the light tailstanding inside a 22°C room with a fan oscilating.

NITEbiker
Offline
Last seen: 2 months 1 week ago
Joined: 09/30/2015 - 07:51
Posts: 27
Location: Australia

I got about half the output number as turbo at the top of the ramp and it ran like so. The sag may have been part heat, part cells to attirbute to the decline in output over the 10 minutes.

I left it untouched pointing at the ceiling in a 22°C air conditioned room with a fan oscilating 2m away. I checked the temp 3 times and it never got hot to the point I was worried about it. I just wanted to go light some trees up from my balcony which are a few hundred metres away (~300m)


Turbo would have got much hotter, sagged much faster and definitely would not have got to 10 minutes in-hand-use in warmer climates like Australia most of the year as it would just be too hot to hold.

EDIT: I forgot to mention the jumps in output is another light source being picked up by the phone too if anyone is wondering why the light increased for a little while. That was when I came back into the room to check temp and stuff around. I’m not sure why it started to climb after the last spike up until I stopped logging…

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 03/24/2016 - 07:44
Posts: 8658
Location: Everything is brighter in Texas

Good info nitebiker.

You are correct that the top of the ramp is about 50-60% of the output as turbo and it is set that way for various reasons. One of which is that at this level it can sustain the output for an extended time, where you are correct, turbo will indeed trigger thermal protection in a few minutes and have a much more drastic drop in lumens. That is why turbo is only for limited bursts.

Kingjohn
Kingjohn's picture
Offline
Last seen: 1 month 6 days ago
Joined: 09/07/2017 - 16:24
Posts: 169
Location: Austria

Texas_Ace wrote:
Good info nitebiker.

You are correct that the top of the ramp is about 50-60% of the output as turbo and it is set that way for various reasons. One of which is that at this level it can sustain the output for an extended time, where you are correct, turbo will indeed trigger thermal protection in a few minutes and have a much more drastic drop in lumens. That is why turbo is only for limited bursts.

I can confirm this.
I did another ceilingbounce test and
top of the ramp was: ~ 4000-4500lm
turbo was: ~ 8500-9000lm

having a long time sustainable top level is a good choice! Thumbs Up

Newlumen
Newlumen's picture
Offline
Last seen: 4 days 20 hours ago
Joined: 05/27/2017 - 00:19
Posts: 2092
Location: United states

Kingjohn wrote:
Texas_Ace wrote:
Good info nitebiker.

You are correct that the top of the ramp is about 50-60% of the output as turbo and it is set that way for various reasons. One of which is that at this level it can sustain the output for an extended time, where you are correct, turbo will indeed trigger thermal protection in a few minutes and have a much more drastic drop in lumens. That is why turbo is only for limited bursts.

I can confirm this.
I did another ceilingbounce test and
top of the ramp was: ~ 4000-4500lm
turbo was: ~ 8500-9000lm

having a long time sustainable top level is a good choice! Thumbs Up

Thanks KJ for the lumen output test.. blf gt70 can run 6000 lumen pretty long.

Mops1
Offline
Last seen: 5 months 2 weeks ago
Joined: 10/28/2017 - 14:59
Posts: 25
Location: Germany , Duisburg

Got the Mail – Firefox does not work but IE worked .
Yesterday i ordered three times one CW conversion kit and two carriers .
Now its time to wait …….
Thank You guys ……. M.

gtxxl
gtxxl's picture
Offline
Last seen: 7 months 2 days ago
Joined: 10/27/2017 - 04:17
Posts: 73
Location: Bremen Germany

I ordered this today. (Lumintop GT70 Conversion Kit XHP70.2 LED NW+1*Centering Ring+1*TA Driver Giggle Monster)
I hope it has the right color. (NW)
Many thanks to the friendly users, in this flashlights forum. Thumbs Up

Maverick1947
Maverick1947's picture
Offline
Last seen: 2 months 2 weeks ago
Joined: 01/05/2018 - 19:53
Posts: 147
Location: Brazil, São Paulo

Got a question about heat. Where is the threshold where the heat might damage the components? I know that when something is too hot to hold is above 50C. Does that temperature already represents a threat to the components? LEDs and drivers?
After seeing some videos about reflowing LEDs I can assume they can stand much higher temps than my hand is comfortable with.

There’s no replacement for displacement.

teacher
teacher's picture
Offline
Last seen: 8 months 19 hours ago
Joined: 02/23/2016 - 19:04
Posts: 9596
Location: NE & SW Alabama

No 50C presents no problem at all to components.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Maverick1947
Maverick1947's picture
Offline
Last seen: 2 months 2 weeks ago
Joined: 01/05/2018 - 19:53
Posts: 147
Location: Brazil, São Paulo

teacher wrote:
No 50C presents no problem at all to components.

Hmm. At what temperature should I start worrying?

There’s no replacement for displacement.

teacher
teacher's picture
Offline
Last seen: 8 months 19 hours ago
Joined: 02/23/2016 - 19:04
Posts: 9596
Location: NE & SW Alabama

Maverick1947 wrote:
teacher wrote:
No 50C presents no problem at all to components.
Hmm. At what temperature should I start worrying?
Hmmm… technically I’m not sure. Let someone else answer that one who knows for sure.
I let a Convoy S2+ with an 8 chip driver go one time (by mistake) for about 45 minutes on High. When I discovered/remembered it the thing was so hot I could not touch it barehanded without getting burned (which I did) before I grabbed a towel & shut it off.

It cooled off and continued to work fine. I do not know how hot it was…. BUT IT WAS HOT!#! Wink

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Texas_Ace
Texas_Ace's picture
Offline
Last seen: 1 day 2 hours ago
Joined: 03/24/2016 - 07:44
Posts: 8658
Location: Everything is brighter in Texas
Maverick1947 wrote:
teacher wrote:
No 50C presents no problem at all to components.
Hmm. At what temperature should I start worrying?

I tested this light with a fully charged set of 8 30Q cells and disabled thermal protection. It peaked at 90C in a very hot garage.

This is fine for the components, they are generally rated for 125c or more and are not usually damaged until at least 150c.

Now the cells are the bigger issue, most cells max temp is around ~75c+, although the cells will obviously not be as hot as the head, when I pulled them out they were only around 50-60c IIRC.

cypher1024
Offline
Last seen: 1 year 6 months ago
Joined: 02/06/2017 - 06:40
Posts: 23
solRNY wrote:
what is the expected run time in hi with the conversion kit? can you use the short tube and long tube together to create a 3S carrier for more run time?

Small correction – each cell carrier is 4S. Running three carriers would be 3P.

Like Newlumen said, you will need a coupler. The good news is that because of the GT’s cell carrier design, the battery tube doesn’t need to be conductive, so your coupler could be 3D printed if necessary.

JasonWW
JasonWW's picture
Offline
Last seen: 20 hours 20 min ago
Joined: 10/22/2016 - 11:41
Posts: 12392
Location: Houston Texas

Maverick1947 wrote:
teacher wrote:
No 50C presents no problem at all to components.

Hmm. At what temperature should I start worrying?

Worrying about what? Don’t worry at all. You can set your light to step down at 40°C if you want. Or 35°C.

The driver components can withstand 230°C for a short time. This is when the solder becomes liquid.

Batteries can operate at 60°C to 70°C.

It’s the led that tends to get the hottest. I think it needs to stay below 150°C at it’s junction between the led and the mcpcb.

Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights

Click this to go to signature links. I'm still around, just not reading many new threads.

Maverick1947
Maverick1947's picture
Offline
Last seen: 2 months 2 weeks ago
Joined: 01/05/2018 - 19:53
Posts: 147
Location: Brazil, São Paulo
Texas_Ace wrote:
Maverick1947 wrote:
teacher wrote:
No 50C presents no problem at all to components.
Hmm. At what temperature should I start worrying?

I tested this light with a fully charged set of 8 30Q cells and disabled thermal protection. It peaked at 90C in a very hot garage.

This is fine for the components, they are generally rated for 125c or more and are not usually damaged until at least 150c.

Now the cells are the bigger issue, most cells max temp is around ~75c+, although the cells will obviously not be as hot as the head, when I pulled them out they were only around 50-60c IIRC.


Woah that’s impressive. Im glad to know that my hand will melt before any harm comes to my babies… lol.

There’s no replacement for displacement.

Maverick1947
Maverick1947's picture
Offline
Last seen: 2 months 2 weeks ago
Joined: 01/05/2018 - 19:53
Posts: 147
Location: Brazil, São Paulo

JasonWW wrote:
Maverick1947 wrote:
teacher wrote:
No 50C presents no problem at all to components.

Hmm. At what temperature should I start worrying?

Worrying about what? Don’t worry at all. You can set your light to step down at 40°C if you want. Or 35°C.

The driver components can withstand 230°C for a short time. This is when the solder becomes liquid.

Batteries can operate at 60°C to 70°C.

It’s the led that tends to get the hottest. I think it needs to stay below 150°C at it’s junction between the led and the mcpcb.


So let me get this straight. All these flashlights that have a thermal stepdown protection, they stepdown to protect my hands? Not the light itself?

There’s no replacement for displacement.

Newlumen
Newlumen's picture
Offline
Last seen: 4 days 20 hours ago
Joined: 05/27/2017 - 00:19
Posts: 2092
Location: United states

I run blf gt70 turbo mode for 10 minutes.. it’s get warm to medium hot.. what a great heatsink… no sign of step down according from my eyes.

Pages