Flow Glass Rotaliana Ceiling Lamp Flow Glass lamp is a lamp made of concentric rings in relief, an emblematic and typical detail of oriental lamps made of paper. Its blown glass diffuser emits optimal brightness due to its LED source and, by changing perspective, the shape of the diffuser changes creating an optical effect in the environment. FLOW GLASS CEILING LAMP STRUCTURE: The available light source is E27 LED (bulb not included). Default finish in matt white. FLOW GLASS CEILING LAMP DIMENSIONS: Flow Glass lamp is available in the following sizes:Flow Glass H3 Flow Glass H4 DELIVERY TIME: Estimated time for delivery 4 working weeks from the payment verification.