These are what I found. Aruba's $30 a set of is still the best price by 50% less.
HIGH INTENSITY AUTOMOTIVE LIGHTING
HID lights are a hot option offered on some of today’s high-end luxury cars. These new type of lights offer significantly better long-range vision because of the “ultra white” light that they produce.
Unfortunately, true HID lighting is still very expensive and only available from the factory on a few vehicles at this point. While there are some aftermarket kits becoming available, these kits require custom installations (inclusive of ballasts and special wiring) and still run in the $1200-1800 range. There is an inexpensive alternative:
“ Xenon HID-White” Light Bulbs!
“Xenon HID-White” bulbs have a special blue glass that actually increases the color temperature (4000K) of the bulb closer to that of daylight, thus producing a significantly whiter light beam, resulting in greatly improved night vision. This special process dramatically increases the whiteness of the light with only a trace of blue hue at the headlight periphery. The improvement in night vision provided by these light bulbs is dramatically illustrated below: (Not shown on this posting)
“Xenon HID-White’s” utilize a Halogen/Xenon/Krypton gas mixture to cool the light filament, thus allowing the bulb to process higher light output resulting in a 30 percent increase in perceived light. These high-end “Xenon HID-White” bulbs cost just about the same as any standard good quality regular replacement bulb!!
While this type of bulb is not completely equal to the light output of a true HID system, It’s a very viable alternative at about 97% savings!
"Easy Installation and a Great Price!"
EASY INSTALLATION
The installation of “Xenon White’s” is VERY easy. Just replace your current regular light bulbs with these. It’s just that simple!
Your brilliant Xenon Replacement Bulb
Sets (2-bulbs) cost only: $ 15.95 - 28.95
We also carry a brand new DOT-Compliant (street legal) “Platinum Series” (3800K) version of our Xenon HID-White headlight bulbs that are “100% street legal”. These bulbs feature a pale lavender colored glass that provides a significantly brighter and whiter light beam than standard halogen bulbs. These bulbs also utilize a high-performance gas mixture of Halogen/Xenon/Krypton gases for increased performance while still keeping the operating temperatures low.
http://www.autostockinc.com/xenon.html