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Comparison · Power supplies

36 W, 12 V 3 A power supply or 5 V 8 A power supply (40 W)

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 8 A power supply (40 W) (11.6 A vs. 2.5); Ripple: 5 V 8 A power supply (40 W) (40 mV vs. 600); Temperature rise: 5 V 8 A power supply (40 W) (135 °C vs. 138).

Model36 W, 12 V 3 A power supply36 W, 12 V 3 A power supply2026Read review →5 V 8 A power supply (40 W)5 V 8 A power supply (40 W)2026Read review →
Voltage, V125
Current, A38
Power, W3640
Test current, A2.511.6
Ripple, mV60040
Protection, A3.711.6
Temperature rise, °C138135
Review conclusionWith reservationsRecommended

Only in one review: Efficiency 74 % (5 V 8 A power supply (40 W)); No load 0.5 W (36 W, 12 V 3 A power supply).

36 W, 12 V 3 A power supply: Works for low-power, undemanding loads, but the author says he would not buy it himself.

5 V 8 A power supply (40 W): A very good unit that handles 10 A with low ripple, though the inductor overheats under sustained 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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