To this category, Marifé Navarro has presented “Llum i corda”, a decorative lamp that combines a system of light emitting diodes (Leds) that, due to its great resistance and its necessity to an electric current of very low intensity, casts light in an efficient way and with a high performance without generating heat. The versatility of this piece that, to the mere eye looks like a string, allows it to act as an ambient light, or as a signalling system —like a handrail—, neon sign, room dividers, etc.