Grating: 1800/mm Wavelength range: 190-900nm Spectral bandwidth: 0.1, 0.2, 0.4, 1.0, 2.0nm Wavelength accuracy: 10.15nm Wavelength repeatability: 0.1nm Baseline stability: 002A/30 minutes( static) ; 0.005A/30 minutes.(dynamic) Light source: 6 lamps automatic turret, automatic alignment Power: double ;cathode power built-in high performance lamps Relative humidity: 20-80% Environment temperature: 15 Power requirement: 220V (5%~-10%), 50/60 Hz; 5000VA Size: 980*450*550mm,60kg