OSRAM XENARC COOL BLUE INTENSE D3S HID Xenon discharge bulb, discharge lamp, 66340CBI-HCB, duobox (2 units)

If yourblooking to change the color of your factory hid yellowish bulbs then this is your answer. While they are a tad bit brighter it's nothing life changing. They match the factory led running lights almost perfectly now. So again if you want a much crisper whiter light, then these are your best choice. If you want something 100 times brighter then you have to get LED bulbs.

Best product and fast delivery

Much brighter than the stock HIDs on my Audi. The Slight blue hue tones down after they "warm" up and the brighter white really shines.

These were purchased to replace the stock Phillips bulbs on my Audi. I honestly don't think these were the smartest buy. It not any brighter than the stock ones.

Mejor que la OEM original, más brillante, mejor iluminación. Excelente producto

Good quality and not the Chinese junk ones

I finally just installed these bulb’s thinking they were the best option because they were the same brand as OEM but not even a week goes by and one suddenly stops working and I wore gloves 🧤 while installing them to be sure I don’t get any oil from my hands only the bulb 💡 so what happens is when I turn off the headlights and then turn them back on the light goes on but then after a couple of minutes it starts flickering and shuts off so I’m not happy especially considering what a pain in the ass it is to get the things into the headlamp assembly in the first place so I want a refund or a replacement by you people I pay good money for these bulbs and I don’t want to get stuck with them

Replace original bulbs, had them installed