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Comparison · Power supplies

12 V 4 A power supply, adapter or Dual-voltage 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 4 A power supply, adapter (4.3 A vs. 2.838); Temperature rise: Dual-voltage power supply (84 °C vs. 103).

Model12 V 4 A power supply, adapter12 V 4 A power supply, adapter2026Read review →Dual-voltage power supplyDual-voltage power supply2015Read review →
Test current, A4.32.838
Temperature rise, °C10384
Review conclusionRecommendedWith reservations

Only in one review: Current 4 A (12 V 4 A power supply, adapter); Power 48 W (12 V 4 A power supply, adapter); In test 47 W (Dual-voltage power supply); Under load 14.6 V (Dual-voltage power supply); Ripple 60 mV (12 V 4 A power supply, adapter); Protection 4.5 A (12 V 4 A power supply, adapter).

12 V 4 A power supply, adapter: It runs steadily at 4 A; temperatures remain acceptable at 4.3 A, though thermal headroom is limited.

Dual-voltage power supply: The PSU works, but its output voltages vary greatly; the author notes the missing inductor on the 12 V channel.

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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