Tradelab carries out the lux meters or white light meters calibration with ENAC (ILAC) accreditation.
The calibration is carried out using standard incandescent halogen lights (type FEL), at color temperature of 2856 K and at distances equal to or greater than 0.5 m.
The different standard values of illuminance are obtained from the inverse-square law, between the source (lamp) and the detector of the lux meter to be calibrated.
For this purpose, several standard lamps are normally required to perform the calibration of lux meters, in order to cover the entire range of their use.