The alca® HIR2 Longlife offers excellent visibility in all weather and operating conditions. Thanks to the quartz glass, distance focusing is improved and glare is reduced. The lamps are made of robust material that reduces vibrations and prevents premature failure. They are easy to install as no modification to the original factory socket is required. The HIR2 Longlife bulb has a rated output of 55W at 12V and a Px26d base. Perfect for low beam and high beam.