... RD1663, DK5940Power Factor(cos φ)1AC Current Distortion (THD)< 2%Consumption at Night [W]0Efficiency Max. Efficiency97.5%97.6%97.6%Euro ... Efficiency (at 360Vdc)96.5%97.0%97.0%MPPT Accuracy99.9 ... .5 Inches, 256x160 Pixels, Backlight, Inverter Parameter and Data Display at NightDisplay LanguageMulti LanguageDatalogger & Communication RS485, USB, GPRS(Optional), Ethernet ...