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

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DBSAR
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Ok everyone, So far i spent the last 7 hours testing, probing, disassembling, comparing, measuring, banging around, and staring at the latest upgraded/revised test sample Barry of Sofirn sent. So far, this is by far the best, most versatile, usable, quality built rechargeable area lantern i have ever seen, built, modified and used. Its a winner! Thumbs Up I will be giving this a green-light for production to begin, all the team has to do is we will finalize the production & specification info over the next couple days. The quality & refinement is much better than the any expensive box-store & consumer lantern i have used or seen. While it may be a bit heavier than the average plastic lantern found in most outdoor stores or online, it looks & feels much better quality and professional. If i were living off the grid or in an area where i depended on a good lantern light with great modes and options, for long-term use in power outages, emergencies, disasters, camping, wilderness cabins, RVs, or even has daily lantern at home, this is it finally. The upgrades & changes i sent to Barry & Sofirn did as requested are spot-on. everything is good in my eyes, and i am giving this final version a thumbs-up for go to production. all they have to do is add the LT1 logo, and create their package options. (as in basic lantern only, and add accessories for other options like adding charge cord, Sofirn high-capacity cells, etc.) I will be doing to the video tomorrow night in my RV trailer with no electricity, only using the LT1 test unit and the original V1 & V2 design prototypes.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Relampago
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Awesome, thanks for the hard work!

“Electricity is really just organized lightning”
― George Carlin

Tech25
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Awesome news! Thank you for your hard work and organizing this!

Barry0892
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Rock your body ya! Wink

Looking for Dealers of Sofirn lights

 

$$$ Join Sofirn Private Group for super deals!  $$$

 

Madtoffel
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Awesome news DBSAR! Seems like we are finally close to getting the production started.
Here we go guys!

djozz
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It is still unclear to me if the warm emitter is 2700K or 3000K? It sounds not much difference but it certainly is a clear difference in practice, both for how warm it feels (important for me personally) and for what intermediate tints are achieved.

And DEN, did you do drop tests? (or was that the “banging around”? Smile ) In order to gain the classification of “best lantern ever” , surviving mild (toppling over a few times on a hard surface) and even medium drops (a few 1 meter drops on wood) seems very relevant to me.

Relampago
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I’ve been wondering, since neoprene-like covers have been made for other flashlights is it possible to include something similar for the lantern at a later date? Something that wraps around the base, I’m assuming the o-ring bumper on the head should suffice for accidental toppling.

“Electricity is really just organized lightning”
― George Carlin

mihlit
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Can it be used as a lightning “system”? For example connect multiple lights to usb charger (power supply) and turn on when there is power over usb and turn off when power is gone? (One switch controlling several lamps.

Maybe even the exact opposite would be useful as an emergency light – when power over usb is lost, turn on.

If it’s not possible ATM, is it possible with firmware update? Can MCU detect whether usb has power?

Wieselflinkpro
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mihlit wrote:
Can it be used as a lightning “system”? For example connect multiple lights to usb charger (power supply) and turn on when there is power over usb and turn off when power is gone? (One switch controlling several lamps.

Maybe even the exact opposite would be useful as an emergency light – when power over usb is lost, turn on.

If it’s not possible ATM, is it possible with firmware update? Can MCU detect whether usb has power?


I don’t know the exact layout of the driver board. But I think there are 2 different and independend circuits. One circuit for the LEDs and one circuit for charging the batteries. Both circuits are connected to the battery of cause.
And I think both circuits can use the switch LEDs for status purpose.

For this behavior you have to change the Side switch. Exchange the switch to a plug and build a remote switch, which you can exchange to a switch-system (one switch and many plugs).

whitecitadel
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Top Work DBSAR Thumbs Up

mohrlumens
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New to the forum – Just returned from a camping trip and this looks perfect!
Count me in for 1

Sparky.
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A few random thoughts .. ..

Packaging — As far as I’m concerned wrap and put into a USPS Flat Rate box and ship. I have to remove and re-package for Christmas packages. Now — If this Lantern will be offered on the Retail Market after the Group Buy — I then could see professional packaging — After the Group Buy.

I’m sure some have thought about this question — So I’ll ask .. .. If one orders on the Group Buy a large quantity — Say 10 or more .. .. Any further discount ??

As the World is introduced to this Lantern thru exposure from the Family and Friends of the Group Buy participants — Will this Lantern be made available For Sale on the Retail market ??

If upon receipt of the Lantern — We want to order more .. .. Can we do this at the Group Buy price — And how long will the Group Buy price be offered once the Lantern’s ship ??

If the Lantern passes Den’s series of tests — Release it. Let it get into the hands of the Group Buy individual’s hands as this will expose it to the World. As time goes by — Suggestions will be made as to how to modify and/or improve it — Let this happen to version 2.0 and so on.

I’m down for 5 at this time (1594,1595,1726,1727,1728) — — — Add 2 more for a total of 7 .. Unless a discount is offered for 10 or more — — If this is granted ………… I’ll take a total of 10.

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Wieselflinkpro wrote:
mihlit wrote:
Can it be used as a lightning “system”? For example connect multiple lights to usb charger (power supply) and turn on when there is power over usb and turn off when power is gone? (One switch controlling several lamps.

Maybe even the exact opposite would be useful as an emergency light – when power over usb is lost, turn on.

If it’s not possible ATM, is it possible with firmware update? Can MCU detect whether usb has power?


I don’t know the exact layout of the driver board. But I think there are 2 different and independend circuits. One circuit for the LEDs and one circuit for charging the batteries. Both circuits are connected to the battery of cause.
And I think both circuits can use the switch LEDs for status purpose.

For this behavior you have to change the Side switch. Exchange the switch to a plug and build a remote switch, which you can exchange to a switch-system (one switch and many plugs).

It may only require custom firmware. I have an Anduril light that that comes on using a forward switch just fine (once I compiled it with momentary support). So chances are, with some changes, you could not put batteries in it and turn it on and off with USB only. Have to wait and see.

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No more changes, SHIP IT!

Thanks Den, and all involved, for all your hard work

DBSAR
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djozz wrote:
It is still unclear to me if the warm emitter is 2700K or 3000K? It sounds not much difference but it certainly is a clear difference in practice, both for how warm it feels (important for me personally) and for what intermediate tints are achieved.

And DEN, did you do drop tests? (or was that the “banging around”? Smile ) In order to gain the classification of “best lantern ever” , surviving mild (toppling over a few times on a hard surface) and even medium drops (a few 1 meter drops on wood) seems very relevant to me.

As far as we know Barry mentioned that 3000K emitters were found & used in the test units, If 2700K is possible and if they don’t cost anymore then i can try to confirm on that.

As for banging around, i did that many times, (including roll the first test sample down my stairs.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

DBSAR
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Sparky. wrote:
A few random thoughts .. ..

Packaging — As far as I’m concerned wrap and put into a USPS Flat Rate box and ship. I have to remove and re-package for Christmas packages. Now — If this Lantern will be offered on the Retail Market after the Group Buy — I then could see professional packaging — After the Group Buy.

I’m sure some have thought about this question — So I’ll ask .. .. If one orders on the Group Buy a large quantity — Say 10 or more .. .. Any further discount ??

As the World is introduced to this Lantern thru exposure from the Family and Friends of the Group Buy participants — Will this Lantern be made available For Sale on the Retail market ??

If upon receipt of the Lantern — We want to order more .. .. Can we do this at the Group Buy price — And how long will the Group Buy price be offered once the Lantern’s ship ??

If the Lantern passes Den’s series of tests — Release it. Let it get into the hands of the Group Buy individual’s hands as this will expose it to the World. As time goes by — Suggestions will be made as to how to modify and/or improve it — Let this happen to version 2.0 and so on.

I’m down for 5 at this time (1594,1595,1726,1727,1728) — — — Add 2 more for a total of 7 .. Unless a discount is offered for 10 or more — — If this is granted ………… I’ll take a total of 10.

To answer your questions as close as i can:
Packaging will depend on what Sofirn plans, a nice box, with foam internal padding & included a user manual like many other of our custom lights come in.

The Group buy discount and if there is any further discount will be up to Sofirn and their sellers.

The LT1 will be offered for retail sale after the Group buy. Smile

As for a second group buy, it will be up to Sofirn & their sellers but we can discuss the possibility.

So far the tests are good, my final tests will be done today and the video done tonight to go on my Youtube channel for everyone to see what the LT1 is & can do. Thumbs Up

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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DBSAR wrote:
djozz wrote:
It is still unclear to me if the warm emitter is 2700K or 3000K? It sounds not much difference but it certainly is a clear difference in practice, both for how warm it feels (important for me personally) and for what intermediate tints are achieved.

And DEN, did you do drop tests? (or was that the “banging around”? Smile ) In order to gain the classification of “best lantern ever” , surviving mild (toppling over a few times on a hard surface) and even medium drops (a few 1 meter drops on wood) seems very relevant to me.

As far as we know Barry mentioned that 3000K emitters were found & used in the test units, If 2700K is possible and if they don’t cost anymore then i can try to confirm on that.

As for banging around, i did that many times, (including roll the first test sample down my stairs.

Den, please don’t let 2700k emitters delay this any longer if it would. Maybe make them a special order for those who care. 1000+ of us would like this lantern just the way it is, which sounds like it includes you. We will never please everyone, but can please the vast majority. We are currently in the 4th camping season since this was announced.

DBSAR
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RobertB wrote:

Den, please don’t let 2700k emitters delay this any longer if it would. Maybe make them a special order for those who care. 1000+ of us would like this lantern just the way it is, which sounds like it includes you. We will never please everyone, but can please the vast majority. We are currently in the 4th camping season since this was announced.

That i will make sure of, if they already have the 3000K we will go with those.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Gunga
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Hmmm. Sounds awesome. I’m number 8. Can I change my 1 lantern to 2?

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Im already on the list for 2,  Can you put me down for a 3rd one.

thanks..

Brett

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Created an account just to say put me down for 1! Thanks for all your hard work.

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Also just created an account to ask if you could put me down for 1. This looks amazing, thanks for all you guys have done on this!

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Would be good to know which LEDs we are talking about when making a decision between 3000K and 2700K. Keeping the high cri is a must and and I also think that 2700K wouldn’t be worth a huge drop in efficiency.

DBSAR
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Madtoffel wrote:
Would be good to know which LEDs we are talking about when making a decision between 3000K and 2700K. Keeping the high cri is a must and and I also think that 2700K wouldn’t be worth a huge drop in efficiency.

both the neutral white & Warm white LEDs used for the lantern are high CRI, and from my tests the tints & rendering are really good even at various stages of the tint mix.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

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Please put me down for another one!

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DBSAR, do are you excited! I know I am. Big Smile

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Super excited about this lantern. Great job to everyone involved. I bought 8 cells for this lantern 2 months ago in anticipation.

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Up to 2,015 on the interest list for 1,285 BLF members Smile

Everyone up to post 5936 has been added but the adds for this week won’t be published until Sunday evening.

Thanks

sgthudson
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Count me in for one when the time comes

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RobertB wrote:

Den, please don’t let 2700k emitters delay this any longer if it would. Maybe make them a special order for those who care. 1000+ of us would like this lantern just the way it is, which sounds like it includes you. We will never please everyone, but can please the vast majority. We are currently in the 4th camping season since this was announced.

^^^^^ +1 Thumbs Up

Camping season is right around the corner!!! 60 days until Georgia is cool enough to camp. Build it! LOL

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