Being a linear driver, it will deliver up to 6A. To deliver 6A there must be a minimum voltage difference between input -cell voltage- and output -emitter- because current flow times resistance (the very battery cell, springs, switch, cables and contacts, etc.) causes a voltage drop. So, once battery voltage drops below a certain point, i.e. once it gets close enough to the Vf of the emitter, the driving current will start to drop below 6A, reducing progressively down from there as it happens with “MOSFET direct drive” drivers.
At present, Chinese buyers mainly feedback two opinions. One is that the reaction speed is not as fast as Anduril, and the other is that the ramping time is a bit long.
This driver is similar in function to anduril, but the code is rewritten, which is more conducive to compatibility with components.
The charging version of M3 will be launched soon, it applies this ramping program.
Great , thanks for the video. My vietnamese is “rusty”. How do you personally like the Ramping.?
I think Simon commented that he doesn’t recommend it for throw. Maybe that’s why no measurements,
I assume everyone is getting a Smooth Reflector.
I read in a M21C review thread, that orange peel in combination with XHP702 makes the beam look “nicer”?
I also wonder how Simon’s new Osram White flats would perform in a M21C-U with the 6000mA driver.
The ramping is smooth from 0 to 100% with one blink when reach high same with low.
In comparing with Anduril firmware , ramping from 0% to 50% is similar speed. From 50% to 100% it’s just a touch slower than Anduril.
M21C-U can access Moon mode from off by long press and double click for turbo or single click for off. Andruil is slightly better as you can access moon mode from off and can continue ramping if desire.
M21C-U firmware is very similar to sofirn sp70. I have not seen the code but the user interface is almost like sofirn sp70
In terms of throw it’s similar to Convoy L2 or L6 with smooth reflector. The led in perfectly center and simon has done great job.
Overall I really like this light way better than EC03 in terms of build, tint selection and thermal distribution. The other thing i like about this light is that it run on single battery using boost circuit to power XHP70 with ramping UI. I dont think there is a light on the market have ramping UI like this yet.
I will post some beam shoot this weekend. It’s just hard to find time with 8 months old baby.