Světlo proniká tmou portrays the kinetic and light sculpture of Zdeněk Pešánek that lit up the sky from the facade of the electric station (which is ironically, in this context, called Edison Transformer Station). Pešánek was using neon light and creating imaginative kinetic and light sculptures at the time. The optimism of the Czechoslovak nation between the wars was thus expressed and emphasized by bright lights and neon. It was all possible because of Tesla.