Folomov C1 10440 light w 3000k High CRI E21a Nichia

Jay · 2019-02-05T13:16:18.000Z

MascaratumB:

Thanks for the information on this light forthcoming light jon!!

Its size and the UI possibilities (apart from the L-M-H-M-L) seem interesting, and being a tailswitch light this small it is way niceee!!

I may have missed it, but from the moonlight you can go UP in modes, like on the Olights (the moon is not memorzied, but you can go up from there)?

I see a slight “con” for my use, that is the the pocket clip on the head! But nothing that can’t be solved!
Any info on the “how much” and the “when” will it be available? :+1:

From moonlight, a click will bring you to last mode memorized (you can’t cycle from moon to low unless you last turned it off in low mode). The info on how much and when are on the product page .

MascaratumB · 2019-02-05T14:53:53.000Z

Jay:

MascaratumB:

Thanks for the information on this light forthcoming light jon!!

Its size and the UI possibilities (apart from the L-M-H-M-L) seem interesting, and being a tailswitch light this small it is way niceee!!

I may have missed it, but from the moonlight you can go UP in modes, like on the Olights (the moon is not memorzied, but you can go up from there)?

I see a slight “con” for my use, that is the the pocket clip on the head! But nothing that can’t be solved!
Any info on the “how much” and the “when” will it be available? :+1:

From moonlight, a click will bring you to last mode memorized (you can’t cycle from moon to low unless you last turned it off in low mode). The info on how much and when are on the product page .

Thanks Jay, I didn’t know it was advertised yet!
Hum, despite that in the UI it seems interesting! However, ordering it from illumn will probably be a killer deal due to customs. I’ll wait and see if it is going to be sold in order stores or even amazon.
Thanks again!

jon_slider · 2019-02-05T20:57:33.000Z

Agro:

10xxx cell with a built-in charing circuit? That’s interesting.
I wonder what’s the length….

I like USB cells, they come in many sizes. Size comparison of the 10440 in the Folomov:

and a better beam color comparison:

Agro · 2019-02-05T22:25:27.000Z

Oh, so they used a shorter cell internally. Nice! Looks like 10-11 mm charging circuit on top of 33-34 mm cell. I strongly suspect it will soon land on my must-buy list.
jon_slider, do you happen to know its capacity?

SKV89 · 2019-02-07T03:09:20.000Z

Jon, thanks for sharing with us with another very detailed post. I love the E21A especially when CCT mixed. I have a Tiara C1 Pro modded by Clemence with 2x E21A 2000k and 2x E21A 3000k. It is the rosiest setup Ive seen yet and it is just so peaceful and comfortable to use at night time before bed as room lighting.

jon_slider · 2019-02-07T06:34:36.000Z

I think the 2000k and 3000k E21a have the best candle light/firelight colors of any LED Ive tried in warm CCT

I love the 2000k E21A light I have from Clemence
I like to say he crammed it full of
gorgeously tangerine orange
Balinese sunsets

the 2000k E21a makes the 3500k N219b 9080 in my HDS look bad, almost mustard yellow, by comparison

jon_slider · 2019-02-09T00:05:09.000Z

pros and cons
the paint was more grippy and warm to the touch, it may also dissipate heat better, not sure
the brass is more shiny
brass is germicidal, can make handsmell like money, and will tarnish
I like copper better… LOL!

CalvinIS · 2019-02-09T02:52:20.000Z

jon_slider:

!{width:90%}! pros and cons the paint was more grippy and warm to the touch, it may also dissipate heat better, not sure the brass is more shiny brass is germicidal, can make handsmell like money, and will tarnish I like copper better… LOL!

The EDC C1 was....painted? How did you remove the external finish?

jon_slider · 2019-02-09T19:13:18.000Z

600 grit emery paper, followed by sunshine cloth
I did not get all the original finish off, its still in the little indentations on the head, and in the groove for the clip. The color match is so close, that I can hardly see the difference. That may change as the brass tarnishes.

Honestly, the light feels better in hand with the original finish, which is imo very nice, both in color and feel. But, I have a love of Oligodynamic metals, and I was curious to see the underlying brass.

imo the stock finish on the Folomov is excellent, and it eliminates any concern some people have about the smell of copper and brass.

Im loving this little 3000k LED. In fact, Im loving the beam too, its actually cleaner than the beam in my HDS w N219b 3500k 9080. I prefer the Folomov LED. As a matter of fact, the Folomov is also capable of being brighter than the HDS, briefly.

l-r 3000k E21a, 4500k N219b, 3500k N219b

thumbs up on the C1, its a little HDS killer… LOL!

jon_slider · 2019-02-10T17:42:37.000Z

Agro:

do you happen to know its capacity?

I did not know, but maukka’s post below does

maybe someone with the ability will test the capacity of the battery will share results

I would also like to know if the cell is protected, or IMR

there is a report that the Folomov has a built in 3v low voltage shutoff, like HDS

.

maukka · 2019-02-10T08:10:46.000Z

It’s ~210mAh/0.710Wh.

joechina · 2019-02-10T09:09:34.000Z

jon_slider:

iPhone photo with auto white balance standing 11 feet away, iphone auto white balance, each shot is separate, so white balance may not match daylight, and may not match between shots:

You can use an app like Camera+ 2 to have more control over white balance

iPhone Photography School – 6 Apr 21

6 Advanced iPhone Camera Controls For Jaw-Dropping Photography

Learn to use advanced iPhone camera controls, including shutter speed and ISO. Start taking incredible photos that you never thought possible!

Capture 6

jon_slider · 2019-02-10T17:43:21.000Z

maukka and joechina, thank you both for your help

Agro · 2019-02-11T11:43:29.000Z

maukka:

It’s ~210mAh/0.710Wh.

Not bad.
Thanks maukka!

jon_slider · 2019-02-12T07:51:43.000Z

@maukka thanks for your imgur spectrum tests of the Folomov LED
I took a snapshot, people who click the pic see your full tests

I still have not seen a review post by you on the light, is that in the works, I hope?
always enjoy your measurements…

jon_slider · 2019-04-22T17:49:25.000Z

Update
after living in the right front pocket of my jeans with keys, coins, and money clip.
One day I pulled the light out and it would not turn on

battery was at 2.65 volts

this tells me the Folomov had been turning itself on in my pocket, the driver wont work below 2.7v. I did a test and at that level High mode is less than 6 lumens. So plenty obvious the battery needs charging.

I already hated the UI, and I did not love the inaccurate lumen specs, but I put up with those issues because I like the LED and mostly use low modes. The realization that it drained itself in my pocket was a sad awakening.

otoh, this light wont leave you suddenly in the dark… since it wont trigger LVP, which I hear from maukka is at 2.5v

scintillator · 2019-06-26T14:50:42.000Z

Question
I have the Folomov C1 and really like the tint and hi CRI from the E21A 3000k led.
My concern is the battery life.
No problem so far but a year from now if the battery fails it looks like I won`t find a replacement folomov.
I just measured the voltage at 3.7 and internal resistance at 123mΩ on the folomov battery.
I have some 10440 efest powerhouses at 3.7v and 115mΩ which leads me to believe I could use any 10440
3.7v cell.
Am I correct?

MyRants · 2019-06-26T15:01:04.000Z

I am using "any 10440" (currently an EBL). The stock battery just didn't hold a charge very long. Seemed to self discharge very quickly.

scintillator · 2019-06-26T15:08:52.000Z

Thanks,I was concerned about too much current smokin the LED:(

jon_slider · 2019-06-26T15:44:57.000Z

scintillator:

I could use any 10440 3.7v cell.
Am I correct?

yes you can use any 10440, however, I would only recommend using Protected ones.

and, you should definitely recharge the ones you have that are at 3.7v.

3.7v is half empty, and LiIon does not benefit from deep discharge cycles. I expect to see 4.1v on a full cell.