Also this is interesting...
http://www.lighting.philips.com/foru...es/38920.shtml
"It's on Herman's FAQ. HIR (halogen infrared reflecting) technology has been around in industrial bulbs for years, but GE applied it to headlight bulbs around 1998. The "big deal" about HIR is that it captures a portion of the infrared (heat) light from the bulb filament and reflects it back to the filament, causing it to burn brighter, with no additional power increase or apparent reduction in bulb life. The actual light output from a 65W HIR1 is close to that of a 100W bulb (for real, and not PIAA-type hype), but still only uses 65W."
