I am runing the Piaa Driving Lights I think they are 520 or 540, I had them mounted to my Brush Guard. They welded a tab to the Brush Guard, the only problem was they did not cover the Grill of the Hummer or it burn through and they got weld marks on my Grill. They are replacing my Grill.
Here is how the lights look on the Hummer.
I went with these light for a wilder light pattern on the road way insted of for a long range light.