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PWR-130-54 130W 54V AC-to-DC Desktop Power Adapter (100-240VAC to 54VDC, 2.4A, Level VI) - Planet Technology USA
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Upgraded Version] 30W Universal AC/DC Adapter, Dteck Multi Voltage Switching Power Supply with 8 Selectable Tips & 5V 2.1A USB Port For 3V to 12V Max 2A Household Electronics and LED Strip -
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power supply - Why are some AC/DC adapters light while others are heavy? - Electrical Engineering Stack Exchange
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