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

I Second this Idea!! It would make the light more Durable and add esthetics to it although I do understand it is a bit late in the build process possibly to add it in now and may up the cost a bit! ……But a Good Idea!!

can it use flat top battery or is it must use button top?

With the battery carryer I have some questions and suggestions:

Yes The quality looks nice. But the solder points near the Bat+ pads are not verry nice. Is it possible to move them to an other place?
And it would be great if the flashlight would work with flat top batteries with raised flat top or in other words with bigger top button. That means the cutout of the top pcb has to be enlarged and perhaps the Bat+ pad too. And the solder points have to be moved to another place too.

I am thinking of the following batteries to fit this carryer:

- Sanyo/Panasonic NCR18650GA

- Sony VTC6 and other Sony Batteries

- LG HG2

  • and similar

The only Problem would be that there is only a difference of a few 0.x mm between Bat+ and schrink tube of the most batteries. The NCR18650GA has a bigger difference between these.

What would you think about it?

zelee: why do you have to quote his entire post with all the pictures?

Can I please be put on the list?

please put me on the list for 1pc

thanks

That’s hilarious, gotta get some Duracell decals for the side xD

I was worried about those solder points at first as well but after testing found that they are there purely to hold the PCB’s together. They appear to have no electrical connection with any other point on the light, so shorting out to them is not a concern.

I still have no idea why they chose to solder the pcb’s together though, it is not needed that I can see.

Far as making it work with flat top cells, it would be too difficult to work with those but not with a reverse cell and then you have variances between the cells as well. Better to simply solder blob the cells or if you need to, remove the protection pcb. Removing the PCB would not be hard, just a basic soldering iron or heat gun is all that is needed.

Ok, I had a few minutes to flash the new firmware from Tom. NarsilM GT 1.2.

After the reflash it is working perfectly, so something went wrong with the flash on the china end. I am thinking they either got the wrong Hex file somehow or the fuse settings were wrong. I noticed that Tom updated the fuse settings recently.

We will sort that out but it should be a simple fix.

Not sure if I will have time to test the LED’s today but I will post the results when I get to them.

Now this would be hilarious…. great idea!!! :+1:
Anyone who remembered these old lights would probably pass out from shock when you fired up the ‘look alike GT’…… :smiley: :smiley: :smiley:

You kidding me? I love light saber shots they really show the beam, and an impressive beam that is. I loved the videos of the Convoy L6 up on YouTube with all that fog truely impressive. So proud of the progress you guys made on this been looking back through the fourms and its exciting to see it become reality. Can’t wait to order this thing and see what it can do!

If possible can you please add me to the list. Thank you.

Not to be mean, but… +1 . :slight_smile:

Button tops or solder boob the flat tops. :+1:

@Texas_Ace

" With the new carrier design I think the best option would be to make an indention in the tailcap to prevent the button top of the carrier from being able to contact the tailcap even if it was inserted backwards. There should be plenty of room and would be a simple fix. "

- Yes, that would be very good!!

- TECH QUESTIONS (sorry, I'm not up to date with all Final Specs)

1- Is the final LED emitter, Cool White or Neutral White?

2- Can the GT use Unprotected batteries? (I have many unprotected, but almost none "protected"... hence my question)

3- If yes, can I use Unprotected in one carrier, and Protected in the other carrier?

4- Can the GT use for instance 4 batteries of 3500mAh in one carrier and 4 batteries of 2700mAh in the other?

BTW, Thanks a lot for your pictures and very detailed report. MUCH APPRECIATED!! It looks AWESOME to me :)

Thanks!!

1: The emitter has always been neutral white, we are just not sure exactly what flavor of neutral white it will be yet. There is apperantly a shortage of neutral white xhp35 HI’s right now.

2: You can use the flat top cells if you solder blob them or if you remove the protection pcb.

3: The official recommendation is 8 matching batteries but unofficially as long as the 4 cells in each carrier match, you will be ok. I have tested this myself with 30q’s and cheap laptop cells in each carrier.

4: Ditto the last answer, officially not recommended but unofficially and electrically you will be ok since the GT uses so little power. It is simply a matter of liability, too much risk in officially suntanning the mixing of cells.

So I have to say, the above advise is in no way connected to the offical GT team, GB or lumintop nor do I provide any garanties. This is based on electrical engineering 101 and personal testing only.

Can I be lazy guys and some one tell me whether both group buys are over, so that I dont have to go back and read through the whole thread? Kinda interested in the light but can’t spend too much money at the moment. Thanks in advance!

The $111 GB is full but the $150 GB is still open.

It should remain open until the lights go on sale.

Posted this a while ago, it is the proto 1 with the shorty tube, the humidity was high and is across water meaning the conditions are real life :slight_smile:

As an aside, the focal length was 35mm on a cropped sensor, close to what the eye sees.

How much better the production model will be is unknown at the moment but high humidity will still be a problem.

Cheers David

I feel your pain, taking Lux readings outside the calculated throw actually goes down as I move further back instead of going up like it should the humidity can be so bad. I usually get the highest readings around 5m, which is much less then should be ideal for a light this size.

I have a water tower I spotted recently that should technically be in range of the gt (about 1 mile) but I kinda doubt that it will reach that far with the humidity and light pollution.

Thank you kind sir!