Looks like the same clamps on the original photo. Rick Stator sent me the same ones for my dual 8" headlight set-up. I sold them to some guy named Doug who rode the across some place called Russia. I think they'll hold up.
"They bought me a box of tin soldiers, I threw all the Generals away, I smashed up the Sergeants and Majors, Now I play with my Privates all day."