Get the new Berkey Battery Adapter™ case for your Berkey Light™ LED system. Complete with on-off switch, the adapter provides backup power for your Berkey™ LED system. Using the Berkey Battery Adapter™ case, the low energy LED’s will provide light, 8 hours per night, for approximately two weeks on a single set of four AA alkaline batteries. That’s right, incredibly you get two weeks worth of emergency light for the price of one set of small AA batteries.
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