Natural básica mínima batería table lamp by santiago roqueta, santa & cole dimensions: d 12.7 x h 33 cm materials: bronze, birch wood, ribbon. Available in other lampshade. Básica mínima batería is the portable version of básica mínima. Its cylindric structure, made of birch wood, holds two lampshade options: pleated natural parchment and ribbon stitched. With a light touch, the lamp turns on and off, making it a light and practical companion. Lithium battery. Switch incorporated into the luminaire with 2 levels of intensity. Power range: 7h on high power, 14h on minimum power. Includes contact charger. Battery charging time: 5h. this piece is attributed to the mentioned designer/maker. It has no attribution mark and no official proof of authenticity, however it is well documented in design history. I take full responsibility for any authenticity issues arising from misattribution, up to 250v (europe/uk standard).