Can you share with me the details of how you attached to the mirrors?
Custom, hand-made fabrications!
These two brackets started out life as two pieces of angled steel, and two large nuts. The nuts were welded to the steel, the hex-head surfaces ground down to a smooth finish. Appropriate bends were made so the bracket clears the bodywork at all times (a critical requirement to avoid harmonic damage to the bodywork!). Finally, holes were precision-drilled to allow for a soft "press fit" around the mirror mount sleeves.
Here are the raw, finished brackets right before being powder-coated a sedate, matte black finish:
Better shot.... out of the sunlight:
How did you wire the lamps up?
Laid down its own dedicated circuit using the techniques we always used over the years: premium, beefy 12ga wiring that feeds a Bosch 12v, 40-amp relay that is triggered by a double-pole, double-throw, center-off toggle switch. When thrown in one position, the Hella lights only light up in conjunction with the high-beam (meets most state laws). When thrown in the other position, the Hella's light up regarding of high-beam/low-beam status.
We protect this circuit with 25-amp fuse.
How do you keep from blinding oncoming traffic?
???
There is no realistic way to use these lights in the presence of oncoming traffic. No way, no how. There is every chance you will cause an accident if you try, and that is no $hit. You can ONLY use these lights when you are out by yourself, or you are separated by a fairly large interstate median, etc.
That said, you *could*, I suppose, aim them downward in an exaggerated manner while in traffic, but... this doesn't seem a reasonable way to go.
Do the Helas have adjustable left-right and up-down screws?
In a manner of speaking, yes... the set-screws can be adjusted just tight enough so that the lamps stay in position in normal operation, yet just loose enough the rider can reach over and aim them as needed while underway. This is actually quite a useful feature.