I just wanted to share the BEST BULBS I'VE EVER FOUND. They are made by Nokya. They have a defined Puple glow to them. H-4's for our Speeds. They are $35 at the local shop: racingzoneautohouse.com . I am a Xenon light afficianado, and can spot the fakes a mile a way. They are the closest you can get, period. They aren't as bright a the real thing. They are half blue and half purple when off. but they look ALL purple when on. My favorite new thing on my car. They are Artic Purple and the are sold as the SPW brand, formally know as Nokya's.