The 80 XT & 80 PRO series by PIAA. They both feature fitment for a H3 bulb. Approx diameter is 6inches. These are different to the 80 Series H4 which are just under 7 inches in diameter.
80 XT - These are available as complete lamp units or lens. The lens units feature a fork type fitment to each side of the lens. The 80 XT series can also be found on the Subaru Impreza Classic bumper drive lights.
The 80 XT series lights were also featured on Eleanor the Shelby Mustang in the Nicholas Cage movie Gone in 60 Seconds.
80 PRO - These are available as lens units only. They are used for lamp pod mounting most commonly seen on bumper/corner competition pods or the smaller lamp pods. The fixing is by a clamp ring pod around the lens unit. The 80 PRO series of lens units can also be found as the bumper lights of Lancer Evo 4 and 5.