I bought 35w bulbs off amazon few months ago.
Got 5 Hella bulbs for my Piaa fog lights...the all failed within a month.
Fortunately Amazon has refund policy so I set em back and got my money.
Maybe it the vibration but I seem to go through more bulbs in those lights then I should.
What ever you do, dont run 2x55w bulbs in those or youll be push starting a bike with a dead battery
Sitting on a dock of the Bay
Redwood City, California
“Although motorcycle riding is romantic, motorcycle maintenance is purely classic.”
Robert M. Pirsig