1.Bump built-in cpu control, cpu automatic scanning and recovery, unattended operation, intelligent control, free repair.Industry leading technology, reliable performance. 2.Brushless motor, frequency conversion start.With high voltage detection and protection, undervoltage protection, overload protection, blocking protection£¬over current protection £¬water shortage protection. 3.With mppt maximum efficiency tracking, frequency conversion energy-saving, delayed start, mute noise reduction 4.Connect with solar module can be worked .Pump material:stainless steel 304 76*76*360mm to 127*127*2490 Weight:5kg/10kg/15kg