Round assembly housing for high-performance LED modules. The housings consist of transparent polycarbonate caps and associated aluminium base plates, which work as heatsinks. A small (preferable for 4W LEDs) and a big (for 8W LEDs) base plate is included. With these cooling plates, the LEDs are suitable for continuous operation with air cooling. Furthermore, small light caps (10mm) for assembly of the modules, i.e. behind a GFK wall and large light caps for assembly on the surface are enclosed.