Fold up all the edges of the luminous balls and unbend the curved edges in a shape of circular configuration.
Insert the attached balloon and inflate it so much to straighten all the wells of the lamp with the aim to let it form flat surface.
The straightened lamp surface should be slightly sprayed with some drops of water. Afterall let it be dried for at least 24 hours.
When the luminous ball's surface is just dried up, the balloon has to be blowned and the remnants must be removed from the balloon lamp.