Comparison · Power supplies

5 V 30 A power supply (150 W) or 12 V 150 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: Test current: 5 V 30 A power supply (150 W) (34 A vs. 15.7); Ripple: 5 V 30 A power supply (150 W) (70 mV vs. 600); Temperature rise: 12 V 150 W power supply (116 °C vs. 135).

Model	5 V 30 A power supply (150 W)2026Read review →	12 V 150 W power supply2025Read review →
Voltage, V	5	12
Current, A	30	12.5
Power, W	150	150
Test current, A	34	15.7
Ripple, mV	70	600
Protection, A	34	15.7
Temperature rise, °C	135	116
Review conclusion	With reservations	With reservations

Only in one review: Under load 4.89 V (5 V 30 A power supply (150 W)); Efficiency 78 % (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.

12 V 150 W power supply: The board handles its rated power, but 80 μF input capacitance is insufficient at 115 V and ripple is high.

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.