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Comparison · Power supplies

12 V 10 W power supply or 5 V 2 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: Test current: 5 V 2 A power supply (2.5 A vs. 1.5); Ripple: 5 V 2 A power supply (100 mV vs. 400).

Model12 V 10 W power supply12 V 10 W power supply2025Read review →5 V 2 A power supply5 V 2 A power supply2015Read review →
Voltage, V125
Power, W1010
Test current, A1.52.5
Ripple, mV400100
Review conclusionWith reservationsWith reservations

Only in one review: Under load 11.95 V (12 V 10 W power supply); Protection 2.5 A (12 V 10 W power supply); Price 4.17 $ (5 V 2 A power supply).

12 V 10 W power supply: It sustains nearly twice its rated power, but ripple is high and overcurrent protection is set too high.

5 V 2 A power supply: Voltage stability is good and ripple is acceptable, but the output inductor is weak and it whines under light load.

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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