long life span;energy saving;high efficiency;no spark,low working voltage,environment protection,no vibration, no waste,ect. 38-16 DC solar water pumpFeature:1. Life: Expected life span is at least 20000 hours.2. Low noise: 40dB, far from 10cm distance.3. Duty work: The pump can sustain heavy duty work for a day. Continuous operation.4. Working conditions: Applying to indoor and outdoor under ...