Technical figures e.g. connected load, luminous efficacy, light colour etc. are maintained here (see figure) as well as data sets for building planning and lighting-related design programs (see figure a). Common data formats and their extensions are: IES, an internationally standardised data format for luminaire luminous intensity distribution curves (see chapter "Luminous intensity distribution curves"),
They serve to process luminaires on all common international electronic design platforms. Qualitative photometric characteristics such as the shape of the luminous intensity distribution curve in its graphic representation using a polar coordinate diagram (see figure b) also provide experienced lighting designers with references on the photometric effects of a luminaire. Combined with the product description, the technical characteristics can be retrieved as a data sheet in PDF format. Advanced product data and product characteristics can be requested via the luminaire manufacturer’s technical support on a case-by-case basis.