The simulator generates an AAA quality AM1.5 spectrum at either 100 mW/cm2 or 50 mW/cm2. It can measure the current-voltage curve on solar cells up to 6"x6" in either wafer, substrate, or superstrate configurations. It is also equipped with a low current source meter to allow accurate measurement of small solar cells down to approximately 3 mm diameter. The cell holders are all temperature controlled to allow cell efficiencies to be measured at Standard Test Conditions as well as +/- 20 ºC above or below room temperature.