1.Life Cycle of LED :approx.50,000 hrs 2.illumination :2,000LM ... 300w Xenon 5.CE mark DESCRIPTIONThe unit built-in LED bulb,the high energy conservation,no more than 30dB( ... approx. 6500 k corresponds to sunlight. The cold light source yields a particularly brilliant aperture illumination and colour rendition, ... DVL, STORZ, WOLF, OLYMPUS,STRYKER,ACMI etc.)a þ CE Certificationa LED Light Source