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

[Phlogiston]

@HKSJOSHUA\_

Hey guys does anyone know if the third batch blf lt1 lanterns support type c to type c charging?

The latest batch are designed to support USB C to C charging, but I haven’t actually seen it confirmed here by someone who owns one yet.

@d_t_a

I have a question… The answer has to be somewhere in the thread, but I can’t seem to find it.

The LT1 lantern, by default is configured for 5x7135 (1.8Amps), but can be configured as 6x7135 or 7x7135 (max, ~2.5Amps), by soldering the joint points for each solder point on the driver board. I forgot whether it was also possible to reduce the max power (3x7135 or 4x7135), by desoldering the points marked “5” and “4”?

I notice on the rev 5.0 board, the “5” and “4” appear to be linked by electronic circuit trace… so it means reducing the power is possible on the older batch but not as easy on the newer batch?

Yes. See here for more details:

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

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 an…

[HKSJOSHUA]

Well that sucks I ordered a 3rd batch lantern and type c to type c did not work. It would not surprise me if sofirn has sent me a earlier model as I feel they do not ship on a first come first serve basis

[Phlogiston]

@HKSJOSHUA\_

Well that sucks I ordered a 3rd batch lantern and type c to type c did not work. It would not surprise me if sofirn has sent me a earlier model as I feel they do not ship on a first come first serve basis

Borrowing d_t_a’s picture:

The driver on the right (the rev 5.0 one) has two resistors near its left edge, labelled R_CC1 and R_CC2. Those enable USB-C to USB-C charging. If your driver doesn’t have those resistors, then you’ve been sent an older version LT1.

[HKSJOSHUA]

Ok this is weird but apparently I do have a 5.0 version but it will only allow me to charge the lantern via my phone but it will not charge my phone. So in essence the type c to type c does work lol

[HKSJOSHUA]

Type c to type c charging does work on the 3rd batch LT1 Lantern I have it plugged in the powerbank now via type c output and im happy with the results!!!

[Phlogiston]

Sorted. That’s the way it’s supposed to work. The LT1 is only designed to accept power from an external power source, so it can charge itself up. It can’t provide power to another device.

One day, there might be an “LT1 Deluxe”, with a powerbank function that can provide power to another device, but that’s a long way away, if ever.

Thank you for confirming that the new LT1 does charge from a USB-C charger - now we know for sure that the rev 5.0 driver upgrade works as planned

[HKSJOSHUA]

Yes type c to type c works finally on the lt1 lol

[YogibearAl]

Just ordered mine with the kit and the case. The description mentioned “latest version” so hope to get the latest with usb-C to C charging. Will be my first lantern\soda can style light.

[d_t_a]

@Phlogiston

@HKSJOSHUA\_

Well that sucks I ordered a 3rd batch lantern and type c to type c did not work. It would not surprise me if sofirn has sent me a earlier model as I feel they do not ship on a first come first serve basis

Borrowing d_t_a’s picture:

The driver on the right (the rev 5.0 one) has two resistors near its left edge, labelled R_CC1 and R_CC2. Those enable USB-C to USB-C charging. If your driver doesn’t have those resistors, then you’ve been sent an older version LT1.

As the others above mentioned, the rev 5.0 board does allow type-C-to-type-C charging (charging the LT1 lantern, but not the lantern as a powerbank)

[DudeMan]

@HKSJOSHUA\_

It would not surprise me if sofirn has sent me a earlier model as I feel they do not ship on a first come first serve basis

what makes you think that?

[HKSJOSHUA]

I have a c8g I have been waiting on for little over two months, may have been lost Idk

[Rexlion]

@Phlogiston

@HKSJOSHUA\_

Well that sucks I ordered a 3rd batch lantern and type c to type c did not work. It would not surprise me if sofirn has sent me a earlier model as I feel they do not ship on a first come first serve basis

Borrowing d_t_a’s picture:

The driver on the right (the rev 5.0 one) has two resistors near its left edge, labelled R_CC1 and R_CC2. Those enable USB-C to USB-C charging. If your driver doesn’t have those resistors, then you’ve been sent an older version LT1.

Aha. Therefore, resistance is not futile!

[HKSJOSHUA]

Lol

[vkor]

I got my LT1 a week ago. Bought in sofirnlight, in Russia the package reached in 35 days I consider it a very good result. Tremendous lamp! Latest version, 5.0. I use it every day, it ’s like a toy, I ’m really happy.

[waxing_twilight]

Barry posted some color sample SP40 pics on the color thread “”https://budgetlightforum.com/t/-/72853/142”“:https://budgetlightforum.com/t/-/72853/142
maybe colored versions aren’t much farther off now?

[DBSAR]

@waxing twilight

Barry posted some color sample SP40 pics on the color thread “”https://budgetlightforum.com/t/-/72853/142”“:https://budgetlightforum.com/t/-/72853/142
maybe colored versions aren’t much farther off now? :partying_face:

Those could be a possibility.

[Blggg]

Has anyone tried bridging the drivers 6 and 7 to increase the max brightness by using pencil? Can anyone can show the picture of how it’s done? I’ve done it but not sure if I did it correctly as the brightness isn’t noticiably different. And I measured the lux by using my phone and I got more lux at mid CCTs than at 5K CCTs. Is that normal?

[lawallac]

I’m interested in getting 2 or 3 of these. I’ve been aware of the project but I have to admit I haven’t followed it very closely. What is currently the best way to get these?

[Geronimo]

Not sure if anyone has them in stock stateside but from Sofirns website has the best price.

[Night_nday]

@lawallac

I’m interested in getting 2 or 3 of these. I’ve been aware of the project but I have to admit I haven’t followed it very closely. What is currently the best way to get these?

Just bought one from amazon canada shipped by amazon . If available in amazon us. PM sofirn for a discount code . Ended up same price as sofirn but with fast delivery and no hassle returns .