CPV code 71318100 designates Artificial and natural lighting engineering services for buildings in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
71318100 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 71318000 (Advisory and consultative engineering services).