There are a lot of brand that makes hyper white foglight bulbs.
Luminics also make white/purple/blue bulbs. I can now vouch for Luminics because they are durable and last pretty damn long.
You can't really go wrong with PIAA either. Search around a bit, there are 1 or 2 bulbs that matches the stock HID temperature pretty good.
06 AW E90 330i ZPP/ZSP/Step/Expired Warranty
: Prior Design Front : ACS Rear : ACS Roof : BlackLines : Simota Intake : Carbon Fiber Interior Trim :
: MTEC V3 : 24% Charcoal : V1 Hardwired : Solaris Invisibulbs/LED interior :