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Comparison · Power supplies

12 V 4 A power supply, adapter or 48 V 1 A power supply

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Ripple: 48 V 1 A power supply (40 mV vs. 60).

Model12 V 4 A power supply, adapter12 V 4 A power supply, adapter2026Read review →48 V 1 A power supply48 V 1 A power supply2018Read review →
Current, A41
Power, W4848
Ripple, mV6040
Protection, A4.51.1
Review conclusionRecommendedRecommended

Only in one review: Voltage 48 V (48 V 1 A power supply); In test 50 W (48 V 1 A power supply); Test current 4.3 A (12 V 4 A power supply, adapter); Temperature rise 103 °C (12 V 4 A power supply, adapter).

12 V 4 A power supply, adapter: It runs steadily at 4 A; temperatures remain acceptable at 4.3 A, though thermal headroom is limited.

48 V 1 A power supply: The supply delivers about 25 W continuously and up to 45–50 W briefly; the author liked it.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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