ENEDED

[HONDARIDER]

@freeme

I heard someone (Jason?) mentioned new Sofirn C8F driver has yet to address under-powered issue. Hope confidence would be reinstate for C8F after it is 100% fixed. If they wish to delay another month, so be it.

@HONDARIDER

Suprised this isn’t doing a little better. Still need 40 or so more participants?

Sofirn is supposed to be sending me 2 drivers to fix this issue. Hopefully they will work better once installed. I have 2 so I will post my results for each light before and after the new driver is installed.

[JasonWW]

@freeme

I heard someone (Jason?) mentioned new Sofirn C8F driver has yet to address under-powered issue. Hope confidence would be reinstate for C8F after it is 100% fixed. If they wish to delay another month, so be it.

It is quite strange. My driver with Sofirn 21700 was only pulling 7.2A and had 2580 lumen. I swapped to a better FET and got 9.3A and 2930 lumen.

I assume the FET swap helped. Testing a couple days later showed output was down to 7.7A and 2450 lumen. This was a head scratcher. I was thinking maybe the edge of the driver was dirty and not making good contact. I cleaned the driver edge and driver cavity and retightened the retaining ring. Then I measured 9.6A and 2930 lumen.

I don’t think it was dirty, I suspect the driver retaining ring is not tightening fully. It seems to tighten to a certain point and stop firmly instead of how a normal ring will continue to tighten as pressure is added.

SKV89 recieved his replacement driver with its new FET and saw no change in output.

So I’m thinking maybe it’s not a FET related issue, but a connection issue with the retaining ring. I plan to add a copper shim or maybe build up some solder on the edge.

I relayed this to Sofirn. I also suggested they swap to heavier led wire. I recently swapped it to 18ga and got 11.5A and 3330 lumen. So that is an easy factory upgrade that can boost output.

[nqcken]

interested

[Nguyen]

Interested

[klrman]

@JasonWW

] It is quite strange. My driver with Sofirn 21700 was only pulling 7.2A and had 2580 lumen. I swapped to a better FET and got 9.3A and 2930 lumen. I assume the FET swap helped. Testing a couple days later showed output was down to 7.7A and 2450 lumen. This was a head scratcher. I was thinking maybe the edge of the driver was dirty and not making good contact. I cleaned the driver edge and driver cavity and retightened the retaining ring. Then I measured 9.6A and 2930 lumen. I don’t think it was dirty, I suspect the driver retaining ring is not tightening fully. It seems to tighten to a certain point and stop firmly instead of how a normal ring will continue to tighten as pressure is added. SKV89 recieved his replacement driver with its new FET and saw no change in output. So I’m thinking maybe it’s not a FET related issue, but a connection issue with the retaining ring. I plan to add a copper shim or maybe build up some solder on the edge. I relayed this to Sofirn. I also suggested they swap to heavier led wire. I recently swapped it to 18ga and got 11.5A and 3330 lumen. So that is an easy factory upgrade that can boost output.

Very good troubleshooting there

[Freedom]

Interested if it will fit a protected cell.

[Kazik]

Interested. Wish there was NW option, but can’t complain since it’s <30 bucks…

[JasonWW]

@Kazik

Interested. Wish there was NW option, but can’t complain since it’s under 30 bucks.

It’s sorta neutral. It’s certainly not the typical CW which is bluish white.

[freeme (youtube.com/@1thedeals)]

Deal will go alive soon.

[Kazik]

@JasonWW

It’s sorta neutral. It’s certainly not the typical CW which is bluish white.

I like 3C-5C tints, even got one flashlight with 7C, which I really like. If it’s something between 1C and 2C (below 6000K at least) - would be fine.

[Bikenjam]

Interested

[Plat]

interested if its low enough

[eric800]

Interested

[JasonWW]

@Kazik

@JasonWW

It’s sorta neutral. It’s certainly not the typical CW which is bluish white.

I like 3C-5C tints, even got one flashlight with 7C, which I really like. If it’s something between 1C and 2C (below 6000K at least) - would be fine.

It is in the “2” range with 5350k-5700K.

[freeme (youtube.com/@1thedeals)]

Woohoo!

Deal is active now!!!

Please place your order by Nov 27!

[Kazik]

@JasonWW

@Kazik

@JasonWW

It’s sorta neutral. It’s certainly not the typical CW which is bluish white.

I like 3C-5C tints, even got one flashlight with 7C, which I really like. If it’s something between 1C and 2C (below 6000K at least) - would be fine.

It is in the “2” range with 5350k-5700K.

Great news! Maybe You should put this info in the Your first post? Couldn’t find it in the product page and for me it’s quite important factor.

Edit: Sorry, I’ve meant Freeme to put info in his first post.

[Satan (Satan@103TFS)]

Interested if price is right.

[freeme (youtube.com/@1thedeals)]

All replied.

[freeme (youtube.com/@1thedeals)]

Utorch C8F is only available in cool white.

@Kazik

@JasonWW

@Kazik

@JasonWW

It’s sorta neutral. It’s certainly not the typical CW which is bluish white.

I like 3C-5C tints, even got one flashlight with 7C, which I really like. If it’s something between 1C and 2C (below 6000K at least) - would be fine.

It is in the “2” range with 5350k-5700K.

Great news! Maybe You should put this info in the Your first post? Couldn’t find it in the product page and for me it’s quite important factor. Edit: Sorry, I’ve meant Freeme to put info in his first post.

[JasonWW]

Have they changed the color temp?

It’s not 5350K-5700K anymore? (for the Utorch version)