The beam pattern is determined by the reflector bowl, rather than the lense. I think theoretically it produces more lumens since the lens is completely clear instead of fluted which can diffuse some of the light. They also looks a little more "streamlined" and updated, as most vehicle headlights now have a clear lense. Is it worth the extra price? To be honest I'm not sure. I compared my FF lights to a friend's traditionals, and the looked about the same... Anyone else have experience?