Philips X-tremeVision Automotive Headlight 9003XVS2 9003 12 V 67/60 W
The 9006 low beams are a HUGE improvement over stock and appear to really be twice as bright as stock. i.e - they really are 100% brighter than stock.
The 9005 high beams are a good improvrment over stock, but do not twice as bright as stock. I estimate they are about 60 to 70% brighter than stock. I am sure this is because my stock wiring (15 years old and possibly corroded) is is not able to provide full 12V.
I believe that an aftermarket relay wiring kit will bring the high beams up to their full +100% potential.
So bottom line, low beams perform fantastic with stock wiring. High beams perform good with stock wiring, but would perform best with a relay.
That is probably true of all headlight upgrades, regardless of brand.
I believe these are the best 9006 and 9005 headlights available anywhere.
I plan to install a relay to further improve high beams. I am also considering upgrading high beams to Philips 9011
I will not upgrade low beam to 9012 because unnecessary and would be cruel to oncoming motorists.
26 December 2012