i think there is more than a bit of salemanship going on here that neglects a few "minor details", From the photo the comparison appears to be made against a high pressure mercury lamp which is the most inefficient of HID lamps and will soon be "outlawed" in many contries. When one considers the total system efficiency (power from the grid to useable lumens), the LUXIM system is less efficient than many lower cost solutions presently offered by leading lighting companies such as OSRAM and Philips. The LUXIM claim of 140LPW is calculated based upon 170 W to the lamp, but the drive electronics requires almost 300W of input power from the AC line. That means less than 50LPW. Not really very impressive.........