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, in our own independent testing, the XV2s are the brightest bulbs currently out there. Winning! Intense: On top of the unbeatable longevity, precision, and performance that all base-model Philips bulbs offer, the XV-C1'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 $150 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 $210. Can't beat our price!