Several 5×5 cm2 LSCs have been characterised, both indoor and outdoor at the European Solar Test Installation laboratories at the Joint Research Centre of the European Commission. Performance on several air-mass conditions has been investigated with device mounted both on tracking and static systems. Results stress the advantages in performance of these devices with regard of diffuse light and in comparison with conventional concentrators, which require complex and expensive tracking systems.JRC.F.8-Renewable Energy (Ispra