The lamps are really much brighter than the "standard" lamps. But they hold with us about 6 months incl. Driving with lights during the day. Since the constant lamp Jump annoying after all. They are also gradually darker and of the silver coating can sometimes drop something. Previously used: Ca. 6 Pieces.
Our Solution: In the bright season the opposite lamps: Longlife = darker, maintains "forever". Now the super bright autumn and winter.