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Comparison · Power supplies

Desktop 120 W 10 A or UM-U120S, 12 volts 10 amps

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: UM-U120S, 12 volts 10 amps (10.5 A vs. 6); Ripple: UM-U120S, 12 volts 10 amps (220 mV vs. 1000); Efficiency: Desktop 120 W 10 A (85.5 % vs. 85); Temperature rise: UM-U120S, 12 volts 10 amps (100 °C vs. 135).

ModelDesktop 120 W 10 ADesktop 120 W 10 A2026Read review →UM-U120S, 12 volts 10 ampsUM-U120S, 12 volts 10 amps2021Read review →
Voltage, V1212
Current, A1010
Power, W120120
Test current, A610.5
Ripple, mV1000220
Efficiency, %85.585
Protection, A10.612.5
Temperature rise, °C135100
Review conclusionNot recommendedWith reservations

Only in one review: In test 60 W (Desktop 120 W 10 A); No load 1.2 W (UM-U120S, 12 volts 10 amps); Price 11.99 $ (UM-U120S, 12 volts 10 amps).

Desktop 120 W 10 A: Neatly built with functioning protection, but actual power is only about 60 W instead of 120 W, with severe overheating.

UM-U120S, 12 volts 10 amps: Overall, the supply is decent, but needs cooling for sustained operation 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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