The driving lights are attached to a 1" square RHS. The lights are 100W NightVision and are all metal - brackets and casings. The mounting bolts are 1/2" and go through the RHS. The RHS is the same length as the motor head is wide. The RHS is attached to the front down tubes of the frame using 'U' bolts, 1 on each tube. The beauty of this is that with the down tubes spreading apart as they descend, then the RHS can be 'wedged' down hard. The 'U' bolts are 1/4" dia and about 3" long. The holes drilled through the RHS to take the 'U' bolts are at an angle to the RHS, but are at 90 degrees to the down tubes. The 'U' bolts have 2 nuts on each leg, in effect locking them on. The protruding thread beyond those 2 nuts is cut off, leaving enough to take domed nuts to finish it off nice and clean. The ends of the RHS have black plastic end caps pushed into them. I left the hemispherical covers on the lights for obvious stone protection, and ran a length of black tape over the top part of the cover on the flat, to keep the glare out of my eyes. Just wired them normally, and included the relay in the headlight shell with the rest of the sh!t. The isolator switch as you can see from my pic is in-line, near the headlight, and readily accessible. BTW, my low beam and DRL are permanently 'on'. As soon as I turn my ignition on, so the lights come on. I start it that way. Never had a problem - yet. I suppose I'll now have to take some close-up photos of the mounting so you'll know what I'm talking about. They say that a picture is worth a thousand words. Meantime the 2 shots below will give you a better idea of the placement of them on the frame. (Addendum - I just opened the post to see what the photos look like. Damn that's an ugly seat. I had it made like that for the "pillion in a million" but found it was hopeless one-up. That's why I had another one made to original.)