In my 92 400e, I put PIAA Hyperwhite or whatever they are called in my front foglights. But, if I turn on my front and rear fog lights, the fuse usually blows in about 20 minutes. THerefore, I dont use the rear light. The lights are nice and way brighter than the old ones. P.S. I removed the yellow lens inside the FL housing so my FLs are white not yellow(yuck)!