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. Intensity : 160000 + 160000 Lux. Operating Field Dia : 240 mm.Color Reduction Index : 94 RA. Number of LED's : 48 + 48. Brightness Control : Digital Control Panel. Increases near surgeon's head. Power Supply : 220V/50Hz AC/ 110 AC/ 60Hz. Order safe item from us. Food and Drug Administration and state and local regulatory agencies. Is important for us to grow our business on. So please do leave feedback.