It'* really a matter of the color choice you prefer others to see as you come down the road. I hear everyone saying this one is brighter and that one is brighter.
"DOT compliant" means they are ALL maxed at what the Government allows. Some use colored glass and coatings that give whiter, bluer, or even greener color. The only way you are going to actually get HID performance is to install "offroad only" HID. (And good luck with the Police and Inspection stations, alot of them are getting savvy to HID'* because of the complaints.) Consumer Reports
did the legwork and here is the cold hard facts about xenon aftermarkets, including Philips.
The Seattle Times: Make It Count: Not all bright ideas are the most economical
Heres the end of the article that sums the tests up pretty well........
"Meanwhile, results of CR'* brightness tests showed some localized improvements, but no one replacement bulb scored consistently better than OE. The Nighthawk and APC Plasma Ultra White improved illuminance in more tests than the other bulbs, some of which did not perform as well as stock bulbs.
Premium replacement bulbs may be cosmetically pleasing — CR'* tests showed that they do yield whiter-looking light than original-equipment bulbs — but they don't offer a consistent performance advantage. In fact, they can perform worse than OE bulbs. Bottom line: Outfitting your car with these dazzling premium bulbs may not be such a bright idea."
I ran Silverstars on my Ram 3500 for awhile and found them to give a whiter light, no further distance, and they blew out twice as fast as the OEM. If and when my GXP OEM'* blow, I stick with OEM and put the savings in Nitrous. That, I know gives me an advantage.