Comparison · Power supplies

48 V, 8.3 A, 400 W (standard model) or 12 V 33 A 400 W 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: 48 V, 8.3 A, 400 W (standard model) (300 W vs. 120); Efficiency: 48 V, 8.3 A, 400 W (standard model) (90 % vs. 84); Temperature rise: 48 V, 8.3 A, 400 W (standard model) (90 °C vs. 110).

Model	48 V, 8.3 A, 400 W (standard model)2026Read review →	12 V 33 A 400 W power supply2025Read review →
Voltage, V	48	12
Current, A	8.3	33
Power, W	400	400
In test, W	300	120
Efficiency, %	90	84
Temperature rise, °C	90	110
Review conclusion	With reservations	With reservations

Only in one review: Ripple 180 mV (12 V 33 A 400 W power supply); No load 1.2 W (48 V, 8.3 A, 400 W (standard model)).

48 V, 8.3 A, 400 W (standard model): A well-made supply with good test results, but the author considers about 250 W its realistic continuous power.

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