Well i know is that these lights made lexus bmw and audi lights look like halogens. no joke
POScontour is right, but only to a certain extent
just because its bluish doesn't mean its not brighter its just a bluish tint instead of a yellowish tint. anything over 5200k is going to have a bluish or purplish tint to it anything over 8000k is going to get darker almost like inpersonating a cop
