... Use for 30 years Low temperature=Veritable cold light source CE,ISO,FDA Endoscopy LED Cold Light Source(CE,FDA,ISO)30w,70w, ... 100w2000Lm=Xenon LightDirect current fan=Quietly50,000 hour=Use for 30 yearsLow temperature=Veritable cold light ... ,WOLF,OLYMPUS etc.STANDARD FEATURESLight source unitFiber optic light cable Power cable Endoscopy LED Cold Light Source