Uploaded December 2024 | Updated September 2026, 1 week ago

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Testing the new Electricity Saving Box sold on eBay in 2024 and 2025. Does it save you any electricity bills? What's inside? Some measurements in the circuit.

The FNIRSI multimeter with a discount:
fnirsi.com/products/dmt-99?sca_ref=9216013.ntkg5GeG0R&utm_source=af&utm_medium=ref&utm_campaign=9216013

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