I have been using this on by brezza 1st gen (projector) for the past 1 month, and i must say that there is a phenominal increase in the amount of light on the road. In the past i had used SMD leds on my car headlight and the results were not that great, i was skeptical ordering this. Now after using this for more than a month, I am happy that i have bought this. The light is evenly spread on the road, and is thorw of light is uniform. My rides as mostly on night and this bulb surely gives a lot of confidence driving at night. I purchased 4200K and i would recommend these bulbs for anyone looking to by leds for 1st gen brezza projectors.