*BLF LT1 Lantern Project) (updated Nov,17,2020)

11707 posts / 0 new
Last post
Sofirn
Sofirn's picture
Offline
Last seen: 1 hour 30 min ago
Joined: 04/06/2017 - 04:22
Posts: 1427
Location: Shenzhen, China

CrashOne wrote:
Sofirn wrote:
CrashOne wrote:
Although my first batch LT1 is still traveling the world: Can we get a separate USB-C to USB-C charging board to replace the original one?
USB-C to USB-C charging board? Do you means new driver?
If that part is on the driver: Would be nice to be able to purchase a separate new driver :)
Would you mind seeing if USB-C to USB-C charging board is on the driver go to https://sofirnlight.com/driver-of-new-lt1-p0080.html
Sofirn
Sofirn's picture
Offline
Last seen: 1 hour 30 min ago
Joined: 04/06/2017 - 04:22
Posts: 1427
Location: Shenzhen, China

Now we offer a small quantity of discount codes for LT1 lantern groupbuy on amazon. If you are interested, please PM me.

BillyBobJoe
Offline
Last seen: 1 hour 2 min ago
Joined: 03/11/2019 - 15:16
Posts: 232
Location: Western USA

Sofirn wrote:
Thumbs Up New-LT-1 is the latest which is compatible with C-C charging (C-C charging cable & charger not included)[/quote]

You are awesome! Will any of the other sofirn lights with usb-c ports have updated drivers for c to c charging as well?

Tom E
Tom E's picture
Offline
Last seen: 5 hours 5 min ago
Joined: 08/19/2012 - 08:23
Posts: 14638
Location: LI NY

Slayer1 wrote:
ToyKeeper wrote:
Kevin Z wrote:
That post do not fill me with confidence, the programmer shouldn’t be asking forum members to correct & improve the programmers software.
That's how free software works... it's a participatory community -- distributed non-hierarchic collaboration. Instead of dividing people into producers and consumers, people try to work together as peers. Not everyone is a programmer, but that doesn't mean they have nothing to contribute. Lots of people around here design lights and circuits, manage projects, track interest lists, write documentation, answer questions, keep each other in good spirits, run tests, measure hardware performance, prototype new concepts, etc. Even if it's just ideas and suggestions, everyone is welcome to contribute what they can... and I try to factor in the needs of many different people. But for some context, Tom E is one of the most experienced modders here, and one of the most prolific flashlight firmware authors, and his code is used on quite a few popular products. He created Narsil / NarsilM, which is what inspired Anduril, so I take his suggestions very seriously.
:THUMBS-UP:

Only saw this now.... Torched then pulled out of the ashes... Thanks for the kind words! smile

CrashOne
Offline
Last seen: 11 hours 24 min ago
Joined: 02/18/2014 - 13:29
Posts: 358
Location: The Netherlands
Sofirn wrote:

CrashOne wrote:
Sofirn wrote:
CrashOne wrote:
Although my first batch LT1 is still traveling the world: Can we get a separate USB-C to USB-C charging board to replace the original one?
USB-C to USB-C charging board? Do you means new driver?
If that part is on the driver: Would be nice to be able to purchase a separate new driver Smile
Would you mind seeing if USB-C to USB-C charging board is on the driver go to https://sofirnlight.com/driver-of-new-lt1-p0080.html

Thanks! Waiting for the first reviews, if positive, will order!

Sofirn
Sofirn's picture
Offline
Last seen: 1 hour 30 min ago
Joined: 04/06/2017 - 04:22
Posts: 1427
Location: Shenzhen, China

BillyBobJoe wrote:

You are awesome! Will any of the other sofirn lights with usb-c ports have updated drivers for c to c charging as well?

Sorry, now it is unknown. We will make our plan according to the feedback of new LT1 lantern.

alternety
Offline
Last seen: 1 year 2 months ago
Joined: 09/08/2013 - 00:52
Posts: 276
Location: Pacific NW

Just ordered my three lanterns. FYI: Sofirn has fixed their site to allow more than one lantern in the cart.

There have been a bunch of great ad-on possibilities on the forum. Is there a post somewhere that collects the possible devices and sources?

I would like to get at least a good variant of a shade.

Dekzter
Offline
Last seen: 2 months 1 week ago
Joined: 01/30/2020 - 17:51
Posts: 28
MNLegoBoy wrote:
Dekzter wrote:
MNLegoBoy wrote:
Dekzter wrote:
So I know I’m late to the party but are there any deals still available for this light?
AliExpress will probably have some deals, there might be a coupon for sofirnlight.com

Just ordered it from AliExpress for pretty much the exact same price as the GroupBuy. Thanks!


Glad you got one, hopefully your doesn’t get lost

Just in case anybody was curious, my lantern from Aliexpress arrived today!

Took exactly one month.

MNLegoBoy
Offline
Last seen: 1 week 6 hours ago
Joined: 05/02/2019 - 20:21
Posts: 199
Location: MN

Dekzter wrote:

Just in case anybody was curious, my lantern from Aliexpress arrived today!

Took exactly one month.


Hope you like it
nick779
nick779's picture
Offline
Last seen: 2 weeks 5 days ago
Joined: 03/09/2018 - 15:46
Posts: 453
Location: Pittsburgh, PA

Super late to the “group buy pre order” but I just ordered mine.

DBSAR
DBSAR's picture
Offline
Last seen: 4 hours 7 min ago
Joined: 02/11/2013 - 23:28
Posts: 6371
Location: Newfoundland, Canada

Vestureofblood has posted his review on his Youtube channel of the BLF LT1 Lantern! Here: >>

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Funtastic
Funtastic's picture
Offline
Last seen: 1 hour 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2065
Location: New Zealand

We have a problem.

I just received 5pcs LT1 and 4 & 5 pads are not connected. This is for the latest batch

I can solder the pads no problem but it may be for others

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

DBSAR
DBSAR's picture
Offline
Last seen: 4 hours 7 min ago
Joined: 02/11/2013 - 23:28
Posts: 6371
Location: Newfoundland, Canada

Funtastic wrote:
We have a problem.

I just received 5pcs LT1 and 4 & 5 pads are not connected. This is for the latest batch

I can solder the pads no problem but it may be for others

!{width:50%}[img]https://i.imgur.com/aONbyEAl.jpg[/img]!

Send Sofirn a message and let them know ASAP.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Young Lois
Offline
Last seen: 1 year 5 months ago
Joined: 04/03/2020 - 04:53
Posts: 1

Funtastic wrote:
We have a problem.

I just received 5pcs LT1 and 4 & 5 pads are not connected. This is for the latest batch

I can solder the pads no problem but it may be for others

!{width:50%}[img]https://i.imgur.com/aONbyEAl.jpg[/img]!


Lexel told no need to solder.
Funtastic
Funtastic's picture
Offline
Last seen: 1 hour 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2065
Location: New Zealand
Young Lois wrote:
Lexel told no need to solder.

Yeah, it’s what Sofirn just told me

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

cm64
Offline
Last seen: 2 days 21 hours ago
Joined: 04/20/2015 - 06:42
Posts: 193
Location: Melbourne Australia
Funtastic wrote:
Young Lois wrote:
Lexel told no need to solder.

Yeah, it’s what Sofirn just told me

Does this mean that 6 & 7 do not need to be bridged to give the increased output like in earlier releases ?

Lexel
Lexel's picture
Offline
Last seen: 10 months 2 weeks ago
Joined: 11/01/2016 - 08:00
Posts: 5895
Location: Germany

If those pads are not connected the lantern is only running on 3 AMCs

I had no contact with Sofirn for at least 2 months as the LT1 PM group is quite silent

Funtastic
Funtastic's picture
Offline
Last seen: 1 hour 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2065
Location: New Zealand

Lexel wrote:
If those pads are not soldered the lantern is only running on 3 AMCs

I had no contact with Sofirn for at least 2 months as the LT1 PM group is quite silent

What should I tell Sofirn as they mention you told them not to

I’m not bothered myself, I can add solder for the ones I sell but it means every review of lumen output is now wrong.

How many lumens approx is 3 AMC’s?

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

Lexel
Lexel's picture
Offline
Last seen: 10 months 2 weeks ago
Joined: 11/01/2016 - 08:00
Posts: 5895
Location: Germany

Funtastic wrote:
Lexel wrote:
If those pads are not soldered the lantern is only running on 3 AMCs

I had no contact with Sofirn for at least 2 months as the LT1 PM group is quite silent

What should I tell Sofirn as they mention you told them not to

I’m not bothered myself, I can add solder for the ones I sell but it means every review of lumen output is now wrong.

How many lumens approx is 3 AMC’s?

You really checked those pads with a DMM that they are not connected?

It seems that’s a new driver revision with 4 0 Ohm resistors on it if you look closer

Funtastic
Funtastic's picture
Offline
Last seen: 1 hour 39 min ago
Joined: 06/26/2014 - 02:14
Posts: 2065
Location: New Zealand

Well, that answers that.

Thanks for the input Lexel.

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

CrashOne
Offline
Last seen: 11 hours 24 min ago
Joined: 02/18/2014 - 13:29
Posts: 358
Location: The Netherlands

For those who have the latest version: Is the USB-C charging working correct?

DBSAR
DBSAR's picture
Offline
Last seen: 4 hours 7 min ago
Joined: 02/11/2013 - 23:28
Posts: 6371
Location: Newfoundland, Canada

Lexel wrote:

You really checked those pads with a DMM that they are not connected?

It seems that’s a new driver revision with 4 0 Ohm resistors on it if you look closer

I see the resistors in that pic now, i was not aware that they added those.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Lexel
Lexel's picture
Offline
Last seen: 10 months 2 weeks ago
Joined: 11/01/2016 - 08:00
Posts: 5895
Location: Germany

at least there should be 0 Ohm, if they put 10Mohm there we got a problem

Phlogiston
Phlogiston's picture
Offline
Last seen: 6 days 17 hours ago
Joined: 10/27/2016 - 16:57
Posts: 986
Location: Scotland
cm64 wrote:
Funtastic wrote:
Young Lois wrote:
Lexel told no need to solder.

Yeah, it’s what Sofirn just told me

Does this mean that 6 & 7 do not need to be bridged to give the increased output like in earlier releases ?

As Lexel says, the latest LT1 driver should have 0Ω resistors connecting AMCs 4 & 5 as standard. You can check that with a multimeter – you should see a short-circuit between the ‘4’ contacts, and another short-circuit between the ‘5’ contacts, even though they’re not soldered.

If any of you have a new-model LT1 and a multimeter, please try it and let us know for sure Smile

The 0Ω resistors make it easier for Sofirn to manufacture and do quality control, because they’re less prone to human error compared to manually soldering contacts with a soldering iron.

If you want more output from your LT1, you still need to solder the ‘6’ contacts together yourself. If you want still more output, you need to solder the ‘7’ contacts together as well.

If you want less output, you have to unsolder the 0Ω resistors next to the ‘5’ contacts. If you want still less output, you have to unsolder the 0Ω resistors next to the ‘4’ contacts as well.

If you change your mind afterwards, you can restore higher output by soldering the ‘4’ contacts together again, and then the ‘5’ contacts together again. You don’t have to worry about saving the 0Ω resistors, so it’s not a problem if you destroy them when you unsolder them.

The new driver also includes USB-C charging resistors to make it compatible with USB-C to USB-C charging.

If any of you get a new-model LT1 and have a USB-C to USB-C charging setup, please try it and let us know whether it works Smile

sbslider
sbslider's picture
Offline
Last seen: 3 weeks 6 days ago
Joined: 01/22/2017 - 13:41
Posts: 1649
Location: United States

They could be 10k ohm resistors and probably work, but like Lexel said 10 Meg ohm would to be a problem.

If you don’t want to or are not able to solder across the pads, a #2 pencil lead across the gap between the pads and on the pads works well also. Easy to remove with an eraser too.

PocketSammich wrote: I don’t need this, but I want it. Please sign me up.

Sofirn
Sofirn's picture
Offline
Last seen: 1 hour 30 min ago
Joined: 04/06/2017 - 04:22
Posts: 1427
Location: Shenzhen, China

Revised driver
- Does not matter what combination of AMC pads 4, 5, 6 and 7 are closed.
- Added location for 0 ohm resistors so manual soldering of pads 4 and 5 is not needed.
- Added 2 resistors to allow a USB-C charger to work with the LT1.
- This last piece should be tested before starting a full run.

SIGShooter
SIGShooter's picture
Offline
Last seen: 2 hours 22 sec ago
Joined: 07/14/2013 - 02:10
Posts: 2230
Location: northern california

Sofirn wrote:
Revised driver
- Does not matter what combination of AMC pads 4, 5, 6 and 7 are closed.
- Added location for 0 ohm resistors so manual soldering of pads 4 and 5 is not needed.
- Added 2 resistors to allow a USB-C charger to work with the LT1.
- This last piece should be tested before starting a full run.

I believe that what this means is that 4 & 5 and don’t need to be soldered as before and if you want less output then you can unsolder the resistors. You can close 6 and/or 7 (either with solder or pencil lead) to get more output but unlike prior driver versions it doesn’t matter if 7 is done but not 6. Before 6 had to be closed if you also wanted 7 closed.
polarweis
polarweis's picture
Offline
Last seen: 3 days 9 hours ago
Joined: 05/31/2017 - 17:05
Posts: 572

Is there still a coupon for lt1?

"It wouldn’t be so bright if there wasn’t a shadow every once in a while." - Jason Mraz

Itsme
Offline
Last seen: 3 months 3 weeks ago
Joined: 07/18/2017 - 00:47
Posts: 564
Location: Canada

I just watched Matts video and when I used his Canadian amazon link it gave me a discount right away. I tried the code but the code said it was invalid however I did get a 27.00 discount right away. I got the lantern + batteries. Matts video is linked on the first post

Sofirn
Sofirn's picture
Offline
Last seen: 1 hour 30 min ago
Joined: 04/06/2017 - 04:22
Posts: 1427
Location: Shenzhen, China

polarweis wrote:
Is there still a coupon for lt1?

Yes. Will send it via private message.

Pages