Lupine C14 MAG Bedienungsanleitung Seite 12

Assembly
Place the C14 MAG holder vertically on the seat post.
Now pull the band tightly around the seat post, then fasten it in the side
hook (for seat posts with a diameter of 27-40 mm). The holder must be
firmly attached to the seat post and its position must not be able to be
changed. Now slide the C14 Mag into the holder. The radiation must be
aligned parallel to the road.
Please make sure that no objects are covering the rear light, also it must
be aligned vertically. The permissible mounting height is 250 - 1200mm.