The CTJ30 from CESI SpA is a Satellite Solar Cell with an efficiency of 29.5% and an output current of 455-517 mA. This solar cell has an open circuit voltage of 2.6- 2.61 V and a short circuit current of 473-538 mA. It has a maximum power consumption of 1.05-1.2 W and uses materials such as InGaP, GaAs, and Ge. The has a low mass of 81-89mg/cm2 and an area of 26.5-30.15 cm2. It has a thickness of 150µm and measures 6.9 x 3.9 cm. The CTJ30 has been fully qualified according to standard ECSS E ST20-08C for low-earth orbit and geostationary orbit applications.