Sterilizable handle for moving dome in the required direction and focusing of the light spot. Super Combination of Yellow and White LED's to produce a natural day light. Minimum heat around surgeon's head and the operative field, temperature rise less than 1 degree C.1,80,000 + 1,80,000 Lux. 105 + 105 (Yellow + White). Order safe item from us. Food and Drug Administration and state and local regulatory agencies.