Built-In 2500mAh Battery Backup: The solar fountain pump for bird bath has a 2500mAh Battery. The solar fountain will keep running even on only weak sunlight or heavy cloudy. 20W Solar Fountain Pump Built-in 2500mAh Battery with 12 LED Lights, DIY Solar Water Fountain 2025, Solar Powered Pond Pump, Long Cord Length for Pool, Pond, Garden, Fish Pond, Small Waterfall.
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