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Αγορά Σπίτι ηλεκτρονικά αξεσουάρ | 30W Universal AC Adapter Reversible Polarity Multi Voltage DC Power Supply, With 9pcs Adaptor Tips, Compatible With 3V to 12V
12VDC 1A 2.1mm Positive Center Wall Adapter Switching Power Supply
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File:AC adaptor polarity.png - Wikimedia Commons
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Kebilshop Power Adapter with 4 Multi Pin and Polarity Change Option For Radios Torches 4.5 Volt 500mA - JioMart
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SoulBay 30W Reverse Polarity Universal AC Adapter Multi Voltage DC Power Supply with 9 Adapter Tips Compatible with 3V to 12V Household Electronics 2A Output: Amazon.de: Electronics & Photo