The Mercedes E350 W212 already has a projector light unit so installing these H7 bulbs was a huge improvement over the standard halogen bulbs. I was also able to raise the headlights a bit higher without dazzling oncoming drivers and even improve the brightness at night. I've been using it daily for about two years now. Probably the best $25 I've ever spent on a car. I am very impressed. Chinese quality is definitely getting better. For those of you who don't have projector beams, these lamps have increased light output, but the light is diffused. I see reviews complaining about this, but it's not the bulb's fault. Search the internet for projector kits and then upgrade the lamps.
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