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Comparison · Power supplies

12 V 8 A power supply or 5 V 20 A power supply (100 W)

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 20 A power supply (100 W) (24 A vs. 8); Ripple: 12 V 8 A power supply (60 mV vs. 100); Temperature rise: 12 V 8 A power supply (90 °C vs. 135).

Model12 V 8 A power supply12 V 8 A power supply2026Read review →5 V 20 A power supply (100 W)5 V 20 A power supply (100 W)2026Read review →
Voltage, V125
Current, A820
Power, W100100
Test current, A824
Ripple, mV60100
Protection, A8.524
Temperature rise, °C90135
Review conclusionRecommendedWith reservations

Only in one review: Under load 4.93 V (5 V 20 A power supply (100 W)); Efficiency 72 % (5 V 20 A power supply (100 W)).

12 V 8 A power supply: It runs at 8 A without overheating and has low ripple; the author reports no concerns.

5 V 20 A power supply (100 W): Well assembled, but effectively a 75 W unit; the output inductor overheats at full power.

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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