Most Bosch Gen2 drive units have the option for 6v or 12v, with selection being made by an IBD using the Bosch Diagnostic Tool. All Gen3 and Gen4 are 12v only.
Current draw is 1500mA continuous/1800mA MAX for Gen2, and 1500mA continuous for Gen3/4. (1100mA front, 400mA rear)
I took a look at the Lupine website via the link you provided. I'm not 100% clear on the specs of their light, and some of the text on the page is a bit confusing/inaccurate when it refers to the Bosch System. It would be good to know the current draw requirements of their lights, but I can't seem to find it on there.