Regarding the climb, I wonder if the stock FET has a high turn on voltage. This would explain the low output. Then the high channel resistance would cause the FET to get hot, and I believe this causes the channel resistance to go down which would increase the output.
Hey guys, sorry that C8F 21700 version has this issue. I was told itās caused by MOS component. I donāt know what MOS is but I would love to send new driver to whose C8F max output lower than 3000 Lumens via 21700 battery.
Please PM me.
I just contact Cissy of Sofirn and she told me to send a new driver :+1: Never disappoint with Sofirn service and fast respond ,looking forward for new Sofirn light
I want to purchase a C8F 21700 from Aliexpress but am now concerned about this defective driver issue.
Can you advise if their stock is being checked/replaced/fixed ?
Iām happy with swapping the fet myself, but I appreciate sofrin looking to address the issue nonetheless. Thatās awesome, as usual from them.
Another point worth noting is that Iām really happy with the ramping on this light. Itās much smoother and a good speed. Compared to the sp32a v1, I feel this light has much improved ramping.
Itās pretty close to the d4. Not quite narsil, but very close imho.
I have a 20mm lexel driver so it might be ok on that side but this is a good point. Overly complicated driver shelf and Alu ring. Almost better to use 17mm and spacer
Just a quick check. Does anybody know if itās safe buying from AE official store at this point or is it likely I will still receive a light with a dodgy FET? Many thanks.