I see Lumintop here once in a while, I wonder if you guys could answer a question for me?
I got a sample ODL20C from an early reviewer, it made very low output… seriously, only 890 lumens on a top cell. I changed the emitter and swapped the sense resistor from an R050 to an R025 to get 4.83A at the tail and 1445 lumens. Then I removed the driver and emitter both and completely rebuilt it with my own components. My light has no branding, when I got it I could find no information anywhere as to what it actually was. I was told Lumintop made it, but at the time there was no information available on it. Of course now I know what it is by it’s unique style as you (Lumintop) have this light readily available.
Can you tell me what steps were taken to bring the output of the ODL20C up so it would outperform the Manker and Utorch equivalent lights?
Edit: This driver isn’t named, both the Manker U21 and Utorch UT02 had a driver name like LX46 or something, this one doesn’t say on the contact board near the spring like those do. This is the driver that was in it when I got it…

This is the charger…

And the charging port is the normal micro USB, not a “C”…

These pics are full size as taken by my Canon 1DsMkII, sorry they’re so large but I left them full size for a close-up view when clicked on.