Don't look at this bulb directly, you'll see spots for the next 10 minutes. Lawdy, this sucker is bright. Much brighter than a standard halogen bulb. I previously used PIAA in my Harley and am quite happy with it. Now I've put one in my old KZ and the head light is like the Death Star!
Don' t mind the 50.00 bucks! in fact I always have an extra in the case.These H4s are by far the brightest and best there is! ..without sucking more than 60/55 watts.Believe me after a 100,000 miles I know. They look more like 110/100s.!
I wish these bulbs cost less. But the brightness and white color of the light produced is superior to my stock bulb. The bulb itself seems to last only about 3 to 4 years. But I can see farther and wider into the night. That is why I keep buying them. I commute and ride almost year round.