ingélux owns a significant number of calibrated tools for characterization of daylight and artificial light. Most of it these tools can be used on-site in order to handle diagnostics, commissioning, expertise, and to provide support to global design. The characterization of light can be used for the evaluation of lighting situations and the identification and quantification of glare, illuminances, spectral characteristics, CRI, etc. We also possess measurement tools for energetic issues (wattmeter, power factor, cos Phi), and for irradiance. ingélux is also equipped with a capacity to characterize the photometry of luminaires up to 1,2m long (IES file, total stabilized flux, IRC, spectral distribution).