H05V-K
Single core non-sheathed power cable with flexible conductor for internal wiring.
Fixed protected installation inside appliances and in, or on, lighting fittings; suitable for installation in surface mounted or embedded conduits, only for signalling or control circuits. 
Not suitable for: direct or indirect burial, laying outdoors or in wet environments, unprotected laying, or laying under plaster.
Further instructions and guidance for use are given in the EN 50565 standard.