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

[nquinn]

Any chance you’d also consider making a mini version to hang in tents?

Something like single cell (AA or 18650), candle to incandescent temperature range (~2000k), lightweight, 360* diffuser, cheap. Should include some kind of clip or ability to hang it to a tent ceiling loop.

I don’t understand why people want lanterns in the 4000-5000k range. That introduces blue light which is artificial and will make it harder to sleep because it messes with circadian rhythms.

[DavidEF]

@nquinn

Any chance you’d also consider making a mini version to hang in tents?

Something like single cell (AA or 18650), candle to incandescent temperature range (~2000k), lightweight, 360* diffuser, cheap. Should include some kind of clip or ability to hang it to a tent ceiling loop.

I don’t understand why people want lanterns in the 4000-5000k range. That introduces blue light which is artificial and will make it harder to sleep because it messes with circadian rhythms.

Wait, did I read that correctly?Are you really saying that blue light is artificial?

[nquinn]

@DavidEF

@nquinn

Any chance you’d also consider making a mini version to hang in tents?

Something like single cell (AA or 18650), candle to incandescent temperature range (~2000k), lightweight, 360* diffuser, cheap. Should include some kind of clip or ability to hang it to a tent ceiling loop.

I don’t understand why people want lanterns in the 4000-5000k range. That introduces blue light which is artificial and will make it harder to sleep because it messes with circadian rhythms.

Wait, did I read that correctly?Are you really saying that blue light is artificial?

Artificial as in it doesn’t normally appear at night and messes with our circadian rhythm.

[DavidEF]

@nquinn

@DavidEF

@nquinn

Any chance you’d also consider making a mini version to hang in tents?

Something like single cell (AA or 18650), candle to incandescent temperature range (~2000k), lightweight, 360* diffuser, cheap. Should include some kind of clip or ability to hang it to a tent ceiling loop.

I don’t understand why people want lanterns in the 4000-5000k range. That introduces blue light which is artificial and will make it harder to sleep because it messes with circadian rhythms.

Wait, did I read that correctly?Are you really saying that blue light is artificial?

Artificial as in it doesn’t normally appear at night and messes with our circadian rhythm.

Okay. :+1:

[DBSAR]

@ToyKeeper

I haven’t really thought about emitter choice for this project… I’m not very involved in the hardware. Maybe XP-G3 would be good, or maybe 219c, or maybe XP-L or XP-L2, or … etc. I hope it’ll be high-CRI though, and hopefully no warmer than 4000K. 219c 4000K could be good.

It’s worth mentioning that high CRI isn’t going to be as efficient.

Like DavidEF mentioned the XP-G3 may be a good emitter for this. ( in the 4000K range to get the best balance of tint & output. Also maybe the XP-G3 would not get so hot as an XP-L on 1.05 amps ( three-7135s) after a hour? I never tested that LED yet… The run time would still be not bad on maximum-mode at 1 amp if four 3200mah or higher cells are used maybe.

[DBSAR]

@nquinn

Any chance you’d also consider making a mini version to hang in tents?

Something like single cell (AA or 18650), candle to incandescent temperature range (~2000k), lightweight, 360* diffuser, cheap. Should include some kind of clip or ability to hang it to a tent ceiling loop.

I don’t understand why people want lanterns in the 4000-5000k range. That introduces blue light which is artificial and will make it harder to sleep because it messes with circadian rhythms.

I did that exact mod to a Roche single 18650 flashlight, put a 2700K warm white XM-L in it, with a 3-7135 Q-Lite, and a frosted diffuser. Its the perfect tent hanging light.

[DBSAR]

@DavidEF

@nquinn

@DavidEF

@nquinn

Any chance you’d also consider making a mini version to hang in tents?

Something like single cell (AA or 18650), candle to incandescent temperature range (~2000k), lightweight, 360* diffuser, cheap. Should include some kind of clip or ability to hang it to a tent ceiling loop.

I don’t understand why people want lanterns in the 4000-5000k range. That introduces blue light which is artificial and will make it harder to sleep because it messes with circadian rhythms.

Wait, did I read that correctly?Are you really saying that blue light is artificial?

Artificial as in it doesn’t normally appear at night and messes with our circadian rhythm.

Okay. :+1:

He is correct on that, warmer tints closer to that of a candle or even yellows, ( 2300 ~ 2700K) does help people sleep & be more relaxed at night. What You Should Know About Warm Lighting

[cypherz]

Please add me to the list.

[DBSAR]

Also updated the interest list. I will be working on the modification to the prototype this weekend coming, and will keep all the recent tips in mind in the upgrades, ( including that it will use simple common 16mm stars for easy modification or LED swaps by everyone. ( it will get modified form the single emitter to two, and a single center bolt-post, and a frosted main lens ( to eliminate the internal lens to cut costs.)

As we all know… TheMiller has been MIA now from BLF for over 2 months… and he was a key team member who had the expertise and contact abilities to communicate with the manufacturers on building our special lights, and he did suggest Thorfire as a good candidate, also Lumintop (who builds our GT) may be another possibility for this ultimate lantern. If TheMiller does not return, we will need help form a member who has the ability & time to be that link to manufacturers for us.

[ISO]

Was talking to a builder and he wanted 10 of these light once I showed all the benefits. He have seen my other light but this light fits was he needed. but Sadly I think it takes to long before its in produktion so he have to go elsewhere.

[BorisBar]

Interested in two.

[vestureofblood]

Interested.

[northbeard]

Interested, for sure!

Many of the third-party hosted pictures in the early parts of this thread have been ‘unlinked’ by the hosting provider. Does anyone have current (or a pointer to updated) pictures of the prototype so far?

[illusum]

Interested in three. Please add me to the list.

[dealgrabber2002]

@RobertB

Yup, I’m number 31 on the list from two years ago.

Right behind you buddy! Can’t believe it’s already been 2 yrs. How times fly.

[ToyKeeper]

@nquinn

Any chance you’d also consider making a mini version to hang in tents?

Is a $2 red or yellow diffuser cone not sufficient? Just add one to your favorite light.

[crankynetadmin]

I am interested in 1. Please add me to the list if you would be so kind!

[Itsme]

Interested, please add me to the list

[Light_Years]

Interested for sure

[DBSAR]

List updated. I have the prototype now taken apart and working on the upgrade modifications.