*BLF LT1 Lantern Project* (Post #6078 Lantern GB Price announced!

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cu42
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amishbill wrote:
DBSAR wrote:

the actual light looks more orange than in that photo. (camera didn’t really get the shade correct.) to the eye its very close to that of a glowing fire hot coals.


Plain red on top, and orang-ish below.
!{width:50%}https://i.imgur.com/q45Sp5u.png!

It may not matter in the least, but that is the first logo that was unbalanced. They revised the logo to a much cleaner version some time after that one.

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cu42 wrote:
amishbill wrote:
DBSAR wrote:

the actual light looks more orange than in that photo. (camera didn’t really get the shade correct.) to the eye its very close to that of a glowing fire hot coals.


Plain red on top, and orang-ish below.

It may not matter in the least, but that is the first logo that was unbalanced. They revised the logo to a much cleaner version some time after that one.


Hey, you think he’d obsess over getting the exact color of the button and NOT care about the Logo? Thanks for bringing it up, because I’m sure he’d kick himself if it came up later, after he’d printed hundreds or even thousands of the labels already! Shocked

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

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I noticed that it wasn’t perfectly balanced, but I put that down to BLF and LT1 not being of equal length. Did someone rekern it or…???

If anyone has a quality copy (.psd, .ai, .xcf, etc) of the “good” logo, please share it with me.

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2 lanterns for me thanks

Hollywood88
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Interested. Please put me down for one

cu42
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amishbill wrote:
I noticed that it wasn’t perfectly balanced, but I put that down to BLF and LT1 not being of equal length. Did someone rekern it or…???

If anyone has a quality copy (.psd, .ai, .xcf, etc) of the “good” logo, please share it with me.

This was posted by Lagittaja on page 136, post # 4061.
Font: Exo 2 Black

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cu42 wrote:
amishbill wrote:
I noticed that it wasn’t perfectly balanced, but I put that down to BLF and LT1 not being of equal length. Did someone rekern it or…???

If anyone has a quality copy (.psd, .ai, .xcf, etc) of the “good” logo, please share it with me.

This was posted by Lagittaja on page 136, post # 4061.
Font: Exo 2 Black

!{width:75%}http://i.imgur.com/iELtvhV.jpg!

I quite like the black and white logo personally.

Wølf/Diesel™

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amishbill wrote:
I noticed that it wasn’t perfectly balanced, but I put that down to BLF and LT1 not being of equal length. Did someone rekern it or…???

If anyone has a quality copy (.psd, .ai, .xcf, etc) of the “good” logo, please share it with me.

lol. while you guys are obsessing over the batteries. i’m hoping we can still somehow get a bright pink light as rendered a bunch of pages back. Ain’t nobody gonna steal it and easy to spot. Beer

but of course, i’ll settle for a red or of course a black. Big Smile

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cu42 wrote:
amishbill wrote:
I noticed that it wasn’t perfectly balanced, but I put that down to BLF and LT1 not being of equal length. Did someone rekern it or…???

If anyone has a quality copy (.psd, .ai, .xcf, etc) of the “good” logo, please share it with me.

This was posted by Lagittaja on page 136, post # 4061.
Font: Exo 2 Black

!{width:75%}http://i.imgur.com/iELtvhV.jpg!


There are several suggested options shown on that page, but I don’t see that any were adopted as the official logo.

Checking about a quarter-mile down the first post, the official logo appears to be the one I’m using.

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amishbill wrote:

There are several suggested options shown on that page, but I don’t see that any were adopted as the official logo.

Checking about a quarter-mile down the first post, the official logo appears to be the one I’m using.

Here is a photo of the production logo to clarify its close to the one i sent you. (though Sofirn may have adjusted its perimeters & font style a little to make it work for their laser CNC engraving machine:

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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Thanks DBSAR – At the scale we’re working, there are no discernible differences aside from tweaking the color/size of the button.

As this is the official production logo, it’s what I’ll be sticking with.

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I got a bit distracted last time I tried to catch up on this thread… but not today. Apologies for the delay in responding to posts.

iamlucky13 wrote:
Tint does affect the PWM settings on each channel, but what should be happening there is a correction of lower than intended current draw on the less dominant tint channel due to how 7135 chips respond to high frequency PWM. I don’t think that would explain it either.

Yes, the actual behavior is a bit difficult to put into a one-line formula for estimating power usage. When it’s just one channel and it’s running at 100%, it should be 350mA multiplied by the number of chips, like 5. But at lower levels or at mixed tints, it gets more complicated because of analog effects on the rise and fall of each pulse, and code which attempts to correct for that digitally.

It tries to keep the total power usage as close to flat as it can, when changing the tint… but when changing the brightness, it’s still pretty non-linear.

Wieselflinkpro wrote:
Is it the case that changing the color to a half mixed tint, that all AMCs run without PWM or on full power? So the latern would be double bright as in extreme cold / hot color temperature?

No, it keeps power pretty constant, so maximum brightness is approximately the same regardless of which tint is used.

patmurris wrote:
DBSAR wrote:
The LT1 will arrive from the factory with 5-7135 regulator chips enabled per channel, ( 5 for the 5000K channel and 5 for the 2700K channel) with two extra 7135 chips left unbridged per channel for those who want to mod their lantern for more output. (for a total of seven 7135s per channel.

I’m just being curious here… What is the rational behind this configuration where max output is limited by some components not being wired? Since output can be finely controlled in many ways by the firmware and UI, why not allow all the 7135 chips right away? While run time will suffer from the lantern being used full blast, i’m sure it could be useful in some situations…

The default is configured so the highest level can be used safely without overheating, since this item is intended to run for long periods of time without being touched and it has no thermal sensor to use for regulating itself. However, it also allows for a very simple hardware modification to run it even brighter, for those who want more light at the expense of having to be more careful.

Using fewer chips is also slightly more efficient at the same brightness levels, and allows for slightly lower low modes.

blind-eye wrote:
Can I leave the lantern plugged in to charge indefinitely? Or will that damage the cells/lantern circuitry?

Keeping li-ion cells fully charged all the time is one of the fastest ways to reduce their life span. It’s not a good idea to keep li-ion-powered items plugged in all the time with the charge always at 100%, unless you don’t mind having to replace the batteries significantly more often.

It won’t exactly kill cells overnight, but it can definitely reduce the life span from like 5-10 years down to just 1 year.

SIGShooter wrote:
I’m thinking that the pencil lead trick for the Nanjg drivers would be an easy way to test out having 5 or 7 7135’s enabled and whether one likes it or not. Certainly easier than soldering and un-soldering things (for me adding a solder blob is easy and quick but removing it not nearly the same).

The pencil trick might not work. I never got it to work on a nanjg driver’s stars, much less on a connection which actually needs to carry a reliable signal during use. But maybe I just need a different pencil.

Compulov wrote:
Is the firmware on this lantern able to be flashed later on to upgrade it with new features, or is it burned in at the factory and can’t be changed?

Yes, it can be reflashed pretty easily. The code is open-source and the driver has programming pads and a standard SOIC8 control chip.

Agro wrote:
Candle mode runs the lantern with the last selected output level and tint right?

All modes share the same color temperature / tint setting. It can be ramped in almost any mode, by doing a “click, click, hold”.

Candle mode has its own brightness level, configured by holding the button to ramp up/down.

nick779 wrote:
D4V2 FW issue?

That issue isn’t relevant for the lantern. It doesn’t have thermal regulation, and it doesn’t attempt to do any LVP while it’s off.

Regardless, even if the lantern did those things, the issue was already fixed months ago. Smile

DarkShot wrote:
Random thought: A multi-emitter EDC light with tint ramping capabilities would be neat. Likely not possible in a D4/FW3A formfactor I’d imagine given the limited driver space but it’d be really cool nonetheless.

It should be possible in a D4. It even has a good number of LEDs for this purpose, so it can have two of each. It’d basically just need the MCPCB and driver redesigned to have two separate LED- outputs, and the firmware would need some extra code to handle four power channels instead of two. Not sure how hard it would be to fit everything onto a D4-sized driver though; it’d probably be necessary to omit the RGB aux LEDs to make room for the extra power circuitry.

Th558 wrote:
I don’t really need to know the exact lumens . Just needed to know it was over 1000. How’s the tint on this thing? Some ppl say the LH351Ds are a bit green. Is there a built in filter to make the tint rosier?

It is probably not over 1000 lumens. By default, probably about 500 or 600 perhaps. It’s hard to measure, due to the unusual beam shape and the black top surface.

The tint, however, is very nice on the middle color temperatures. The warm and cool LEDs mix in a manner which results in a pinkish tint instead of a green tint. This happens because the colorspace is curved, but the mixed tint line is not. The available tints span the pink line here, approximately:

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I hope I’m not too late, but I’ve finally been updating the diagram to make a lantern-specific version. Here’s what I have so far:

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ToyKeeper wrote:
I hope I’m not too late, but I’ve finally been updating the diagram to make a lantern-specific version. Here’s what I have so far:

Thanks Toykeeper for the updates and new manual Andruil diagram Thumbs Up Big Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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I am interested.

COB

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Tonight I am feeling a bit like the Simpsons’ kids. Are we there yet? Are we there yet? Are we there yet? Are we there yet?

Ready to play with my LT1 lanterns!

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Rexlion wrote:
Are we there yet?

Ready to play with my LT1 lanterns!

Especially if they come in pink, purple, metallic red, or other fun colors. Smile

(though I don’t think that’s in the plan… IIRC the only planned colors are black, sand, and forest green)

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Thanks for the updated Anduril graphic, TK! This thread is difficult to keep up with if you get more than a day or so behind, so I think we can all appreciate your effort there, as well.

RobAllen

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ToyKeeper wrote:
Rexlion wrote:
Are we there yet?

Ready to play with my LT1 lanterns!

Especially if they come in pink, purple, metallic red, or other fun colors. Smile

(though I don’t think that’s in the plan… IIRC the only planned colors are black, sand, and forest green)

Maybe we can convince Sofirn to offer the optional bright colors. Big Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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leftdisconnected wrote:
Thanks for the updated Anduril graphic, TK! This thread is difficult to keep up with if you get more than a day or so behind, so I think we can all appreciate your effort there, as well.
Thumbs Up Definitely agree! The firmware Toykeeper developed for the LT1 is my favorite firmware with the perfect modes for any lantern (and for a flashlight even)

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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DBSAR wrote:
perfect modes for any lantern

We should never underestimate the importance of having adjustable-tint high-CRI momentary bike flasher mode in a lantern. I mean, it would be totally useless without that. How else would we stutter-signal to others while riding down the mountain in our bike-mounted camping tents? Silly

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ToyKeeper wrote:
We should never underestimate the importance of having adjustable-tint high-CRI momentary bike flasher mode in a lantern.
Quite right!

Tactical strobe should also randomly vary the tint for extra tacticalness. Silly

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I want multi color color RGB mixing perimeter mounted aux lights with storm mode so we can use it on the Christmas Tree instead of twinkle lights & tinsel!

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ToyKeeper wrote:
DBSAR wrote:
perfect modes for any lantern

We should never underestimate the importance of having adjustable-tint high-CRI momentary bike flasher mode in a lantern. I mean, it would be totally useless without that. How else would we stutter-signal to others while riding down the mountain in our bike-mounted camping tents? Silly

I don’t know about you guys – but I’m wanting a disco mode for when I’m sitting movin’ around the camp site. Wink

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We totally need two tint disco mode!

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ToyKeeper wrote:
DBSAR wrote:
perfect modes for any lantern

We should never underestimate the importance of having adjustable-tint high-CRI momentary bike flasher mode in a lantern. I mean, it would be totally useless without that. How else would we stutter-signal to others while riding down the mountain in our bike-mounted camping tents? Silly

lol most of the modes anyway. Cool

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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So now want it to have a disco mode! Party Camp!!!

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I’m interested in one of these lanterns.

Thank you

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ToyKeeper wrote:
I hope I’m not too late, but I’ve finally been updating the diagram to make a lantern-specific version.

Do you think there’s enough space in the battery compartment to put a small version of the cheat sheet? Perhaps rolled around the batteries?

This thread is massive and I’ve gotten to the point that I’m either just checking the OP or cruising through the pages looking for significant contributions so my apologies if this has been suggested:
Perhaps a very simplified version of the cheat sheet could be printed somewhere on or in the light on future versions?
For that to work it would require an understanding of the functions, modes, and actions required to modify things but might be helpful for those of us who are forgetful.

Also it wouldn’t surprise me if this UI gets some more use in the future. I can see a D4V3 with warm and cool emitters with tint control. Just default add me to that list.

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I print out TK’s post and try to keep it with/near the Lantern for reference.

Just Great Work again form TK Smile

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