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"The Solar Breeze robotic pool skimmer can float continuously in your pool, operating on solar power directly during the day, and on battery power at night. However, no electrical connections are needed, nor is manual recharging. The solar panels not only run the skimmer, but recharge the battery during the day. The skimmer can also automatically dispense chemicals as it skims, and is so effective, according to the manufacturer, that the traditional pool pump is needed only half the time."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.trendhunter.com/trends/solar-pool-skimmer-green-pool-cleaning-robot-reduces-pump-use-to-save-elect>