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Comparison · Power supplies

12 V 8 A power supply or 48 V 2.1 A, 100 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: 12 V 8 A power supply (8 A vs. 1.7); Ripple: 48 V 2.1 A, 100 W power supply (50 mV vs. 60); Temperature rise: 48 V 2.1 A, 100 W power supply (64 °C vs. 90).

Model12 V 8 A power supply12 V 8 A power supply2026Read review →48 V 2.1 A, 100 W power supply48 V 2.1 A, 100 W power supply2026Read review →
Voltage, V1248
Current, A82.1
Power, W100100
Test current, A81.7
Ripple, mV6050
Protection, A8.51.7
Temperature rise, °C9064
Review conclusionRecommendedWith reservations

Only in one review: In test 77 W (48 V 2.1 A, 100 W power supply).

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

48 V 2.1 A, 100 W power supply: Well built, cool-running, and low-ripple, but protection limits output to about 77 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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