Sciencetech offers 200W lamps as standards of spectral irradiance, total irradiance, and color temperature. These lamps have tungsten coiled-filaments enclosed in a small quartz envelope. Calibration of the 200W lamps over all or part of 250 to 2400 nm wavelength range is available with high-accuracy level. The high-accuracy standards of spectral irradiance issued have a transfer uncertainty relative to the NIST Scale of ±1-2%. Illuminance, color temperature and chromaticity values are also supplied with this standard calibrated over the visible spectrum.

Price includes lamp and lamp holder. Power supply sold separately.