Panasonic has just announced a new fluorescent light fixture that's extra energy efficient. Responding to ambient light (from the sun, etc), the light will adjust its output accordingly to save electricity while maintaining brightness.
The Auto-Eco Light-Control Twin Pa, its full glorious name, boasts an energy savings of up to 62% with its brightness automation. But at $360 for a 74W version and $390 for 89W, it had better damn well rain redwood seedlings onto my living room floor wrapped in dollar bills to keep them warm. [Panasonic via CrunchGear]