Parisian product designer Jean-Sébastien Lagrange and graphic design studio Chevalvert recently unveiled a lamp that is essentially a poster to hang on the wall. Shown as part of the Saint-Étienne Design Biennial, L-INK is printed with silver-based ink conducting electricity to 40 LEDs on the poster, which is plain 320g paper. Pins holding the lamp at the top of the sheet are connected to a wire and plug, which feeds electricity through the ink to the LEDs, illuminating the sheet.

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