Once I tried to paint a glass lens with yellow felt pen. If you have a totally yellow lens the light is yellow as well. Half yellow, half transparent is not bad. However, it does not even get close to a real warm white emitter.
The C8F can be purchased on sofirnlight.com with 3000K XP-L or 2700K LH351D.
2700K or 3000K SST20 should be nice as well like in the Fireflies ROT66, E07 or Emisar D4S, D18.
So I just received my Sofirn C8F bought from Sofirn’s AliExpress store on 01\06\2020. The tail cap has the dual springs, but on a freshly charged LG M50T 21700 cell, I’m reading about 2300 lumen on my Texas Ace calibrated lumen tube. One of the holes in the retaining ring looks damaged and has a gash through the ring. Anodization looks like one small area has a rub mark. Will be contacting them. Will be trying a 30T cell on it to see if it’s the batteries internal resistance. Not happy about the retaining ring looking damaged, or the output. Does anyone know if the brass retaining ring from a Convoy can be used in place if the soft aluminum? Hopefully I didn’t get one with an old driver. Will be contacting Sofirn to hopefully get this resolved.
The old driver was still better than the numbers you’re seeing.
Make sure you clean all the contact areas and that the retaining ring is tight. If I loosen mine or cut the spring bypass I get approx 2000. Try redoing the spring bypass as I always get less with the factory job.
Yeah I’m wondering if I do anything to it if they will honor warranty? :). I’ll try tightening the retaining ring, although one of the holes is damaged so not sure how tight I can get it. The bypass can be redone too. As long as the driver is correct the rest can be corrected (I hope)
When I first tested my Samsung 50E I only got 2200lm. After fiddling with the driver retaining ring I got 2700lm. A 30T squeezed out a few more at 3100lm. So the M50T is not that big an issue.
Notice how my retaining ring is a bit messed up? One hole drilled through side wall and the other is very close.
- Driver retaining ring
- Scuff off of anodizing underneath the “hot” label.
I think at a minimum I would want to get a new retaining ring. The packaging and all other accessories looked new. But I’m wondering if this was a refurb of the original batch to replace the driver? Not sure. But none of my Convoys came like this. I’ll try again with my 30T cell fully charged tomorrow as far as the output is concerned.
Nothing off looking though. I’m a dealer in New Zealand and quite often I get scratches and off centered holes in retaining rings on Sofirn lights. Sofirn used to apply black repair stuff on scratches in hopes of not noticing it. I had heaps on the old 18650 C8F’s until I complained and not long after I stopped seeing it
Sofirn offer excellent lights for the price, if you want everything spot on then look elsewhere
You could message Sofirn about the scratch and see if they’ll give a small refund