Tetrapod by design studio Keha3 is an urban space element inspired by the concrete tetra shaped elements used in waterworks to build wavebreakers. Tetrapod can be used as a room divider, as a light object, or simply as a decorative object. The light element is mounted in the center of the polyeutherine body of the Tetrapod and has a E27 socket. The recommended light source is a LED bulb. The combination of the PE shell, the metal housing used for the socket, the cable and plug ensures that the design is IP44.

Tetrapod lighting was designed for a street reconstruction and urban landscape project in Tallinn, Estonia, finished in autumn 2020. The architectural solution was done by Estonian architectural company Lootusprojekt OÜ.