the ‘7’ shape lamp is printed in two parts, each of which have small holes with 1.75mm so that small strips of printing filament can be used for alignment
The light is comprised by 2 segments of LEDs, so you'll need to cut to dimension using the tracks as size guides.
Place the 2 LED strips on the dedicated tracks
Solder them together into the power socket
Glue the two parts of the ‘7’ shape structure
glue the magnets on the dedicated holes for the bottom lid - 4x on the base + 4x on the lid itself