The driver design is from me, also was heavily involved to get NarsilM running on it, a lot of practical problems for fireflies to get it done in mass production
I did not even count the hours communicating over Skype explain things, troubleshoot ect.
There has been a lot of work getting it done, lots of problems like with a big loacal distributor for Microchips delivered fake ATTiny85s
To keep problems like this not happening again all parts for driver were ordered from Arrow in the USA
Final product looks promising
the best MOSFET I could find going through specs of different manufactories is used
the same Infineon MOSFET for best performane I use on all my drivers after the SIR404
BSC009NE2LS5IATMA1
Basically the MOSFET is like none existent even down to low battery voltages the resistance keeps extremly low, 1.2mOhms at 3.5V
Lower modes are current controlled with AMC7135s the good claw type
I tried everything I could do over Skype to get the flashing issue fixed, on a picture the markings on the Attiny made me suspicious,
to get the problem dealt quicker Fireflies sent me a prototype driver and LED board with DHL Express, flashing did not work so I cut it off and made makros of it,
definately does not look original
As I was sure an original Attiny85 worked great, so I build a few and send them back with Express for the first prototypes
Production
Some product pictures with first prototype
They went for SS Bezel and Tail even if the production costs are higher, pretty unique as far as I know
The center 2mm rod of the carrier got removed even if its in the design there, has no real practical advantage