bro check on the bulbs, if they are orignal bulbs they should have philips written on it on the black part, it will be written with white color which i cannot see in the pics..otherwise they are china..and about the ballast..i looked at them carefully they are 100% China. First reason is, the grips on the bulbs you see are patli wali grips, these are standard across all china hidz, philips orignal uses different kind of grip. Second baat yeh boss kay on the ballast its written HID LIGHTNING BALLAST, i am not an expert but i have seen pics of philips ballast on the net, and the model number of the ballast is written there not this HID LIGHTNING BALLAST thing. Your better off buying a 6k-7k china hid rather than this.
Its upto u if u want 10k or 8k. 10k is much blue in looks but it blinds the oncoming traffic a lot more then 8k. I prefer 8k
Im not sure on comparison of rally h4 bulbs vs Chinese hids so i wont comment on that