... , maintenance-free, safe, reliable, energy-saving, efficient;Photovoltaic water pump, Permanent magnet brushless motor, Maximum power point tracking(MPPT ... with conditions:1) The warranty does not apply when the equipment has been damage through abuse, careless, improper installation, accident ... perfect as always. XINYA 3inch 36V impeller solar energy water pump home system (3SPC2.8/52-D36/500)