Comparison · Power supplies

5 V 30 A power supply (150 W) or 50 V 2.5 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 30 A power supply (150 W) (34 A vs. 1.85); Temperature rise: 50 V 2.5 A power supply (55 °C vs. 135).

Model	5 V 30 A power supply (150 W)2026Read review →	50 V 2.5 A power supply2019Read review →
Voltage, V	5	50
Current, A	30	2.5
Test current, A	34	1.85
Temperature rise, °C	135	55
Review conclusion	With reservations	Recommended

Only in one review: Power 150 W (5 V 30 A power supply (150 W)); In test 150 W (50 V 2.5 A power supply); Under load 4.89 V (5 V 30 A power supply (150 W)); Ripple 70 mV (5 V 30 A power supply (150 W)); Efficiency 78 % (5 V 30 A power supply (150 W)); Protection 34 A (5 V 30 A power supply (150 W)).

5 V 30 A power supply (150 W): Delivers about 75% of its rated power; ripple is acceptable, but the inductor and diode assembly overheat.

50 V 2.5 A power supply: The supplies were modified to 43.5 V each and connected in series; they remained only warm under 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.