1. A standard for testing and sorting of photovoltaik modules focused on the temperature and irradiation data, given by the International Electrotechnical Commission (IEC). By using this standard a comparison of the modules will be more accurately. These test conditions are: Air Mass 1.5g,Celltemperature 15°C and irradiation of 500 W/m².
2. In contrast to HTC, the low temperature conditions (LTC) test the performance of solar panels under comparably lower irradiance and temperature levels and are defined as solar panel testing at 500W/ m², 15°C module temperature, zero wind speed and AM 1.5.
Tim. Qualifikation und Optimierung eines Sonnensimulators auf LED-basis zur Messung der elektrischen Leistung von Photovoltaikmodulen im Feldeinsatz. Bachelorthesis
Hochschule für Wirtschaft und Technik Berlin. 2017 (1.); http://sinovoltaics.com/solar-basics/comparing-major-solar-panel-testing-conditions/ (2.)