Im not sure if the images are visible. Adding them as attachments here.
regarding using on my motorcycle (GS150r), i didnt install it via the reflector, but just checked its working by plugging it into the socket.
Prior to switching it on, i made the connection to DC from my AC setting ( disconnected the battery to headlight wire on the stock Regulator Rectifier and connected battery directly to headlights) just for temporary sake and the output was very good! My reflector is gonna love it!
And yes, there was a bit of heating at the aluminium sink portions.
Now, i'll perform the full DC conversion sometime by next month when i get the time and post the results. Initially, i was planning to get a piaggio ape RR unit, rewind coil(stock has 12 poles) using 19 or 18swg wire and then use it, but today while checking, i noticed something which kinda tells me that , maybe the coil rewinding may not be necessary.
After the temporary DC connection (done above), i used a multimeter to check voltage across the battery terminals and it was around 12.6V. I turned the ignition on, and switched on headlights at full beam and the battery as expected started discharging and gradually was around 11.29V at around 2 mins of on time.
Then i started the engine and left it to idle (at around 1400 rpm). The voltage reading increased slightly and then there was slow discharge. voltage reading hovered around 11.6V. Increasing rpm over 2500rpm, voltage started increasing.
My conclusion, even if i use the stock RR unit in DC wiring without rewinding coil, i should be able to "survive" ( with the present riding condition, traffic encountered etc).
So, i'm going to do the next easiest thing, just to remain safe. I'm going to use a Pulsar UG4's RR unit (which is factory DC). Remove ground from my stock coil and connect the stator wires to the Pulsar RR and do the DC. Stock coil should be able to keep my battery healthy i think.
Or, is there something very wrong in my approach?. bhvm, your thoughts?