ContactPlease contact the respective company in your country:German Society for Lighting technology and lighting design e. V. (LiTG) To the websiteDanish Center for Lighting (DCL) To the websiteLight Technology Society of Austria (LTG) To the websiteDutch Foundation for Illumination Science (NSVV) To the websiteSwiss Light Society (SLG) To the websiteFor questions and suggestions please use the contact form* Required fields By using this form, you consent to the storage and processing of your data by this website.