«[https: // archive.is/20130816132543/http://www.ledgu10dimbaar.nl/website/index.php?TreeItem=391161&NewsItem=28097 The Advantages of Using LED Verlichting]». The Difference of Connections. LED Spots & LED Inbouwspots. Arxivat de l'[http: //www.ledgu10dimbaar. nl / website / index.php? TreeItem = 391.161 & NewsItem = 28097 original] el 16 agost 2013. [Consulta: 16 agost 2013].[Enllaç no actiu]