yar if u want better visabilty then goo for more powerfull bulbs with yellow light.
i have bosch xenons but there are many qualities available. the shop from where i got them, the man there told me that there are 3 varieties in bosch xenons . chinese korean and german but i dnt think soo.. there was a clear differnce between those but i think all of them are chinese but with diff quality.
chinese 1 were for 250 korean for 400 and he was askin 700 for the german ones...
only thing good about them is that they produce white light. but if u want better visability than the stock ones go for some bulbs with high watts than the stock ones...
but if u want those in any case then dnt worry they work better than the stock ones