djozz wrote:

It does have a significant different forward voltage, under 2V, while white leds are over 3V. But still I expect the same driver, but maybe the resistor limiting the current has a different value.

Swapping the red led however requires removing the potting, I read that it is possible but personally I have not attempted that.

Sari33 wrote:

djozz wrote:

It does have a significant different forward voltage, under 2V, while white leds are over 3V. But still I expect the same driver, but maybe the resistor limiting the current has a different value.

Swapping the red led however requires removing the potting, I read that it is possible but personally I have not attempted that.

So any AA/A bost driver with white Led can accept a Red led
and tension will be auto adjust by driver?
The only concern will be the max current output.

Sari33

if you modify a C01 Red
and have success removing the potting, and installing a Sophia LED

djozz wrote:

please share photos and info,

good luck!

and dont forget to reinstall the O Ring…

What is the white washer?Silicone glue or plastic?
Sorry,maybe I will only sand led and try get more flood for go on bath at night..
Anyway my sample it’s brighter than the lowest mode of C01R SST20, both ni-mh batts at 1.2V

Hard plastic, potting compound. They say it can be dissolved/softened with I thought it was thinner. And with heat.

Yes, heat in the beggining and start taking chips of it. When you feel you’re close to electronics then soak it in thiner. 
This method was used back in the days with Fenix E01 and Inova X5

For do that better high pressure on Led head or hammering?
Think will be not easy,will try to heat a bit also

Sari33 wrote:

For do that better high pressure on Led head or hammering?
Think will be not easy,will try to heat a bit also

The die of Red Led is tiny,sand surface can correct the beam irregulary
but not increase much flood.It need to be cut as I do on rngwn Led
that is super floody now.
Would ask sofirn to made C01 Red unpotted if not too late.

Ladies, those lights are $3.99 each – including O-ring. Not sure it pays to crack open the epoxy pot.

Unheard wrote:

Ladies, those lights are $3.99 each - including O-ring. Not sure it pays to crack open the epoxy pot.

A few days ago I used scotch-brite on one of my red C01 (led, and reflector) and it did soften the artifacts. I’ll take better pictures, and upload tonight.. I’m not happy with how they turned out.

Havok wrote:

A few days ago I used scotch-brite on one of my red C01 (led, and reflector) and it did soften the artifacts. I’ll take better pictures, and upload tonight.. I’m not happy with how they turned out.

jon_slider wrote:

on my meter it only makes 1.2 lumens

I consider the C01 Red pretty useless, except as a spare battery carrier

Had to order orange because its still 3.54 €/3.99$ for next 19 hours. Also got some other stuff at same time like holsters and diffusers.

MoreLumens wrote:

Had to order orange because its still 3.54 €/3.99$ for next 19 hours. Also got some other stuff at same time like holsters and diffusers.

Sari33 wrote:

MoreLumens wrote:

Had to order orange because its still 3.54 €/3.99$ for next 19 hours. Also got some other stuff at same time like holsters and diffusers.

If Sofirn do another batch of C01 sublumen / high modes with reversible UI and ask Led supplier to made also 2000k option would be the cream. Will buy 10

I dont even know what I got. Havent seen any videos about this or reviews, but main use will probably be finding stuff from backpack when its dark etc.

Sari33 wrote:

Havok wrote:

A few days ago I used scotch-brite on one of my red C01 (led, and reflector) and it did soften the artifacts. I’ll take better pictures, and upload tonight.. I’m not happy with how they turned out.

Do you gain a little flood or hotspot is focussed as before?

It smoothed out the beam, so it’s more even, and a little dimmer. To me, that’s not a bad thing when it comes to 670nm.
Please excuse the missing edges of the beams. I was using a piece of white poster board that wasn’t flat.

The hotspot is still a little overexposed.

These are 10 inches away from the board.

Mod on the left. Stock on the right.

Mod

Effect

Good result,thanks for share.
Does you have removed Led from host or you successful sanded already installed?
Also the cone seem sanded

Unheard wrote:

Do you consider it useless from a medical point of view also? I remember you had an application for migraine treatment.

I like the second mode on the C01R, which on my meter is 10 lumens, for red light therapy.

the eyesight study used 20 lumens 670nm red, I consider that more than necessary. imo 5 to 10 lumens of 660nm red is plenty bright enough for my application.

I put the light directly on my painful arthritis. For migraine the light is shined into the nose.

Sari33 wrote:

If Sofirn do another batch of C01

Havok wrote:

Mod

Effect

per djozz, the sanded LED is now 0.2 lumens (half as bright as before)

Sari33 wrote:

Good result,thanks for share. Does you have removed Led from host or you successful sanded already installed? Also the cone seem sanded

I did it installed. Just took some scotch-brite, a pair of ESD-15 curved tweezers, and ran it across the led. Every once and a while I would turn it on to check my progress. Same thing with the reflector.

jon_slider wrote:

Yes, I consider the very low output, 0.4 lumens per djozz (1.4 lumens on my meter), of the C01 670nm, to be weaker than I prefer.

I like the second mode on the C01R, which on my meter is 10 lumens, for red light therapy.

the eyesight study used 20 lumens 670nm red, I consider that more than necessary. imo 5 to 10 lumens of 660nm red is plenty bright enough for my application.

I put the light directly on my painful arthritis. For migraine the light is shined into the nose.

per djozz, the sanded LED is now 0.2 lumens (half as bright as before)

I’ve been trying the C01R on my arthritis, but it hasn’t helped it. Maybe the cause is keeping it from working? To me, the C01 670nm is better as a reading light. I have one with my notebook cover for when I need to write something down.

A couple more C01 “potting” datapoints. I just received a green and an orange moments ago. The green is potted, the orange is not. They’re very nice; I’m very pleased with the purchase.

jon_slider wrote:

I like the second mode on the C01R, which on my meter is 10 lumens, for red light therapy

MascaratumB wrote:

Yesterday I received my latest order of C01 lights (with the new led) + 1 CO1S !…

Nice comparisons MascaratumB! Any suggestions on how to diffuse the hotspot?

hodor wrote:

Any suggestions on how to diffuse the hotspot?

Oh oops, replied before reading subsequent posts

this post shows the use of DC Fix as a reversible option…

Datapoints: received 2xblue, 2xbrown, all unpotted. The brown is a nice colour

I also got another black, red and brown C01 (previously got a black and red). All are potted except the brown one, it is indeed a nice color!