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Comparison · Power supplies

12 V 33 A 400 W power supply or C400 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: In test: C400 power supply (360 W vs. 120); Test current: 12 V 33 A 400 W power supply (11 A vs. 6); Temperature rise: 12 V 33 A 400 W power supply (110 °C vs. 150).

Model12 V 33 A 400 W power supply12 V 33 A 400 W power supply2025Read review →C400 power supplyC400 power supplyRuiDeng · 2023Read review →
Power, W400400
In test, W120360
Test current, A116
Temperature rise, °C110150
Review conclusionWith reservationsRecommended

Only in one review: Voltage 12 V (12 V 33 A 400 W power supply); Current 33 A (12 V 33 A 400 W power supply); Under load 11.885 V (12 V 33 A 400 W power supply); Ripple 180 mV (12 V 33 A 400 W power supply); Efficiency 84 % (12 V 33 A 400 W power supply); Protection 11 A (12 V 33 A 400 W power supply).

12 V 33 A 400 W power supply: Neatly built, but delivers about 100 W continuously rather than the claimed 400 W, and the transformer runs hot.

C400 power supply: The PSU handles 360 W confidently and pleased the author overall, but its fan is noisy and one transistor runs hot.

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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