... 40°CPH6.5-8.5SituationBe immersed in waterApplicationPumping water from deep well, gardening, fountain and etcPRODUCT ... -flow, over-load, waterless, etc;automatically recovery;control water height;easy installation, maintenance-free, safe, reliable, energy ... , efficient;Photovoltaic water pump, Permanent magnet brushless motor, Maximum power point tracking(MPPT)Ambient temperature -20°C-50 ...