1, high color temperature, light hair and blue colors. Look more handsome. K-number is the number of k flag, generally halogen color temperature of 3000 or less. Xenon lamp is 4500k start. 7000k very ordinary. A couple of days ago to see a buddy said 12000k xenon lamp, crazy, definitely blue purple. K number is high, generally more Close to daylight easier to accept, but I think the real benefits of high color temperature, just nice., Other little. 2, high brightness, Note The intended color temperature and brightness is fundamentally different from the concept of, xenon lights, not because of the color temperature is high, but because of the high brightness. The brightness of the unit is the flow of the lumen, a xenon lamp Ming number is three times the ordinary halogen lamp. 3, as energy consumption, long life has little to do with us.