• SO WHAT: Meaning they are physically brighter and offer more contrast at night, which makes them seem even brighter than they already are. In summary, everybody who uses them agrees they're the best D3S bulbs ever made 
• BEST OF THE BEST: Osram's CBI and CBH bulbs are top performers in their category, with an amazing amount of white bright paired with max lumin Osity; they're topped only by the Osram CBB (Cool Blue Boost) AKA the cream of Osram's crop 
• BRIGHTEST: In a recent comparison test, the Osram Cool Blue Boost bested the CBH, CBI, and standard by a solid margin. Forget about the fancy names and Kelvin ratings Osram is assigning, these things are simply the best & brightest bulb that Osram currently makes for use in your D2S headlight! (CBB = 460 Lux, CBH = 415 Lux, CBI = 340 Lux, Standard = 315 Lux) Check out our formal review VIDEO at the bottom of this page 
• 6,000K? So Osram rates these bulbs at 7000K, which seems quite blue... But in our own testing, we found the CBB to have no more "blue" color to it compared to the CBH (which they rate at 6000K) and/or the CBI (which they rate at 5500K) - in this case, it seems that Osram is actually playing into the common misnomer that Kelvin rating = brightness by rating the bulbs accordingly higher. Weird! 
• BACKED: Bottom line? Though the CBB is new and yet to be tested by the masses, the popularity of their siblings (CBI and CBH) indicates to us that these are going to be extremely popular given the fact that they're considerably brighter, and only marginally more expensive than the alternatives. If you're looking for the best set of D3S headlight bulbs and aren't afraid to spend a few more bucks to get it, look no further, folks 
• GENUINE: The K5 Optima Store is proud to offer these bulbs in their original retail packaging from Osram. 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
  

Package Includes:

• 1 Pair of Osram Xenarc 66340 HID D3S CBB Bulbs
• 2-Year Warranty from the manufacturer
• We recommend professional installation
• Installation DIY (FOUND HERE)

Vehicle Applications:

• 2016-2020 Kia Optima (Equipped with factory HIDs)
• (Except the 2016 Kia Optima Hybrid model, which uses D1S HID bulbs)
• 2015-2019 Hyundai Sonata (Equipped with factory HIDs)
• Many other vehicles that use the OEM HID D3S bulbs
• 2011-2015 Kia Optima & 2011-2014 Hyundai Sonata HID bulbs can be found on our site here: D1S HID Bulbs

Technical Specifications:

COMPATIBILITY:

Lamp Type:

D3S (PK32D-5)

Wattage:

35W

Applications:

Audi, Chrysler, BMW, Dodge, Kia, Mercedes, Porsche etc.