35W in low, 35W in high. Different beam is due to focus. If you want REALLY bright (and sap your battery and lighting coil, I rather suspect you do not have a 200W aftermarket wind) you can put them both on at once. Probably not.
Be sure you don't have a 12VAC lighting coil, and a 12VDC batt charging coil. I don't know Katooms but it's been done. Dem Germans have been known to go their own way.
You can get aftermarket handlebar lighting switches that look factory. I run one.
Heb Dduw, heb ddim; Duw a digon
I'm that gun-totin', farm-raised, evangelical, pro-environment, OHV ridin'/drivin', Southern civil rights pro-labor Liberal yo' momma told you couldn't possibly exist.