The iLight-HgAr Mercury-Argon Wavelength Standard Light Source is specifically designed for the wavelength calibration of spectrometers, monochromators, and other optical equipment. This light source combines mercury and argon lamps to cover a broad spectral wavelength range from 253.6 nm to 1700 nm. It includes TTL shutter control for precise operation and is equipped with professional optical lenses to efficiently couple light into a fiber optic, enhancing the output light intensity. This setup ensures accurate and reliable calibration, making it an essential tool for maintaining the precision of optical measurements.