C's cost less to produce than the S's...less quality....they make way more profit on you from the C's. Their cost is lower, they charge you the same...more money for them, and your stuck with an inferior bulb.
Dopie 10k bulbs?? Man your going to feel like you have no lights on at all while driving at night. You will be able to see the color, but not the road.
Another thing with colored lights, your eyes fatigue faster. Experiments have shown that driving with anything higher than 6K at night strains and fatigues your eyes. Since your putting a lot less light on the ground, your eyes strain and try to be more alert. So driving long distances at night with anything higher than 6K can actually make you very tired.
if Stock 4300K = 100% of light available
6000K = 90% or 10% loss
8000K = 76% or 24% loss
10000K= 68% or 32% loss
12000K= 56% or 44% loss
Which is why most people wanting looks AND performance go with 6000K. Your just losing too much light going any lower than that.
