I've got China brand 4300K Hi-Lo bixenon on my LO47 (Gen 1 LWB). It brightens up everything infront of me and sometimes shines into other vehicles' cabins. Already adjusted as according to requirements here. Other than aesthetics factor, the 4300K is more friendly in rainy weather and in the forest compared to the 6000K and above bulbs. I'm using a Raybrig clear lens housing since I got them in Thailand and the bulbs resemble normal H4 bulbs, only longer.