When I replaced my driver side cool blue for another one....they didn't match The pass. side looked whiter..I swear...I check and re checked against a gargage....the driver replacement looked more like a stock halogen....but better. The pass side deff. was different.

 

all the "hyper" bulbs look different. my friend had some hipers that I sold him, and one burned out so he bought a cool blue, it looked like a stock bulb.

 

I meant to say I replaced it with another cool blue. Meaning one cool blue didn't match the other.