... Strong protection 3.3 years warranty 4.OEM HIGH QUALITY 3000W PURE SINE WAVE OFF GRID SOLAR INVERTER ... 7) Perfect protection functions: low voltage protection, high voltage protection,high temperature protection, short circuit protection, overload protection, ... Output short circuit, Overheating, Lightning protectionControllerInput voltage range(DC)24V—40V/48V—80VPhotovoltaic power generation maximum ...