Ok, so here are all my tries.
Main idea is still to take the fan and modeling light dedicated electrical circuit out of Bron plug and power it up with a 12V supply.
So I first wanted to test this circuit from the right pins.
https://ibb.co/sV1HD0hhttps://ibb.co/sV1HD0hhttps://ibb.co/Zxn6GjD>> Photo confirms BobShaw’s Mobilite Wiring
My Bron Paris shop phonecall confirmed it too. B2 and B3 are the ones ! B2 is supposed to be the +
If that works, I would cut the wires in the Bron plug before getting to the pins and rewire them.
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I tried different power supply 12V and intensity 3A and 5,5A. The two didn’t work (both fan and lamp).
I was not totally sure about + and - so I switched them, still didn’t work (both fan and lamp).
Could it be caused by a security thing like the ground I didn’t connect ?
Coud it be because I didn’t use the dedicated Bron 12V 2,7 charger ?
I could keep investigating
• with a Mec 12V 2,7V (I don’t own Bron’s charger and Mec does the exact same one for 50 bucks),
• by trying the Mobiled adapter, very good idea BobShaw
BUT I moved to something else (''Plan 2''). Less risky
Even if i’m still opened to hear for any of thoughts…