California-based SEG Solar says its new panels have a temperature coefficient of -0.30% per degree Celsius. They come with a 30-year power output guarantee for 87.4% of the initial yield.
SEG Solar is offering four versions of the panels, with power outputs ranging from 425 W to 440 W. The efficiency ratings range from 21.76% to 22.53%. The open-circuit voltage is between 38.70 V and 39.15 V and the short-circuit current is between 13.91 A and 14.13 A. The maximum system voltage is 1,500 V.