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Comparison · Power supplies

12 V 33 A 400 W power supply or 24 V 16.7 A 400 W power supply with 0–10 V control

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: 24 V 16.7 A 400 W power supply with 0–10 V control (280 W vs. 120); Ripple: 24 V 16.7 A 400 W power supply with 0–10 V control (100 mV vs. 180); Efficiency: 24 V 16.7 A 400 W power supply with 0–10 V control (86 % vs. 84); Temperature rise: 12 V 33 A 400 W power supply (110 °C vs. 117).

Model12 V 33 A 400 W power supply12 V 33 A 400 W power supply2025Read review →24 V 16.7 A 400 W power supply with 0–10 V control24 V 16.7 A 400 W power supply with 0–10 V control2025Read review →
Voltage, V1224
Current, A3316.7
Power, W400400
In test, W120280
Ripple, mV180100
Efficiency, %8486
Temperature rise, °C110117
Review conclusionWith reservationsWith reservations

12 V 33 A 400 W power supply: Neatly built, but realistically suited to about 100 W continuous, not the claimed 400 W.

24 V 16.7 A 400 W power supply with 0–10 V control: Well built, but delivers about 200–240 W continuously, well below the claimed 400 W.

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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