International Light has been offering calibration services since we created the first USA-made light measurement system in 1965. Our full service calibration lab offers ISO 17025 Accredited (UKAS recognized) calibrations and certifications that are also N.I.S.T. Traceable. Our calibration and testing capabilities include Monochromators, Spectrometers, Spectroradiometers, Radiometers, Photometers, Lux meters, UV meters, UV, VIS and IR Light Sources, Photodetectors, LED’s, Lamps, Light booths, Filters, Cuvette transmission, Integrating spheres, reflectance standards and more. ILT calibrates a wide array of light measurement devices from manufacturers and distributors world-wide. To verify that your system is supported, click on the below images for the calibration you are seeking. If your specific system is not listed, if you have a question on our calibration services or capabilities, or would like to get more information, contact us using the Contact Us button below.