I had been running a set of Philips Vision Plus 50's in a 9007 flavor connected to a wiring harness. I thought nothing could be better. When one of the low beam filaments went last week after a couple of years, I replaced them with a set of the Extreme Powers from suvlights.com, the +80's.
Holy (censored)!
The beam pattern did not change, but the light output definitely is greater, it appears whiter but that is due to the increased output. Vision down the road is a bit greater, but the real difference is to the sides, wow is all I can say. Whatever they cost, they are worth every penny.