A new interpretation of slide rules - Abacus LED pendant light Slide rules were used in past centuries to solve arithmetic problems. It didn't matter whether it was a simple addition or a more complex formula. Inspired by this, the Abacus LED pendant light was developed with clear lines to reflect the purity of maths. Terzani is an Italian company known for its reinterpretation of traditional materials. This LED pendant light consists of five hand-blown opal glass spheres attached to a sleek brass-coloured suspension system. Thanks to its subtle design, Abacus can be adapted to a wide variety of environments and is suitable for a living room, but can just as easily serve as an elegant source of light in a commercial setting. The warm white glow of the LEDs gently penetrates the frosted glass, providing uniform illumination with glare-free light.