Phillips has introduced the world's first +50% (performance) xenon bulb, the D2S X-tremeVision (model # 85122XVS1). Just like the similar "plus"-type (ultra high efficacy) halogen offerings (technical explanation here
), these should be legitimately
more intense ("brighter") than standard HID bulbs. But because they're new, I haven't been able to find much info on them except this PDF
The following is from an automotive lighting expert I polled:
CCT [correlated color temperature] is specified as 4800K (vs. nominal 4100K to 4300K depending whose numbers you like for the standard D2). My guess is the "+50%" claim is probably based similarly to those claims for high-spec halogen bulbs: tighter focus, higher luminance, and running at the high end of the allowable luminous flux specification so that you get up to 50% greater intensity at the high-intensity zone of the beam pattern. [Unlike high-spec halogen bulbs,] I don't think lifespan would be materially less. It would surprise me if this is a lameware product that doesn't live up to the claims; Philips doesn't generally do that.
The downside is that I haven't found any vendors in the US. They're for sale in a few places in Europe (for example on
). And none of the international merchants I've found are willing to ship to the US.
Anyway, when I see something new, I'll update!