OEM Quality: Philips fights back! The Osram Cool Blue Intense series has taken over as the world's best-performing OEM+ "5000K" HID lamps, but their arch-rival Philips recently introduced the Xtreme Vision series, and a solid competitor they are! In fact, the XV2 from Philips is THE brightest bulb in our entire catalog from our own independent testing. Intense: On top of the unbeatable longevity, precision, and performance that all base-model Philips bulbs offer, the XV2's add another few hundred lumens to the bottom line while upping the Kelvin rating to 4800K. Just like the Osram CBI, Philips managed more lumens out of a higher Kelvin bulb. Crisp: Just shy of 5000K and north of an OEM 4300K, these will offer you a perfectly white light output without being too stark - giving users the perfect contrast between style and excellent visibility while driving at night. If budget isn't a major concern, you will not be disappointed. Genuine: Here at our shop, we pride ourselves on being one of the last few distributors shipping genuine Philips & Osram lamps in the US. It is estimated that 80% of these bulbs sold through outlets such as eBay or Amazon are fakes. Don't be fooled by ads offering these bulbs for anything less than $250 as there is a high chance the bulbs are cheap Chinese knock offs. Priced Right: Doing some competitive research, the only other store offering these bulbs that are verifiably real Philips is offering them for $300 for a set. Can't beat our price!