Source google image: https://votespear.org/wp-content/uploads/2018/10/comment-brancher-un-volet-roulant-electrique-velux-inspirant-photos-branchement-volet-roulant-maison-design-apsip-of-comment-brancher-un-volet-roulant-electrique-velux.jpg
Schema branchement velux electrique
Source google image: https://votespear.org/wp-content/uploads/2018/10/comment-brancher-un-volet-roulant-electrique-velux-inspirant-photos-branchement-volet-roulant-maison-design-apsip-of-comment-brancher-un-volet-roulant-electrique-velux.jpg