The series « Perchées » (« high up ») explores the lightness, the thinness and the opalescence of Zelfo. Delicately cast as if they were an inflated vellum, a stretched skin or a bunch of wild blossom, their bubbles of light are perched at the top of thin steel rods, planted in a rugged concrete base. The steel structure comes as a basket and offer plenty of possibilities (from 1 to several lamps).