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Comparison · Power supplies

24 V 3 A power supply or 12 V 75 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 75 W power supply (7.5 A vs. 3.5); Ripple: 24 V 3 A power supply (50 mV vs. 170); Temperature rise: 12 V 75 W power supply (68 °C vs. 109).

Model24 V 3 A power supply24 V 3 A power supply2026Read review →12 V 75 W power supply12 V 75 W power supply2025Read review →
Voltage, V2412
Power, W7275
Test current, A3.57.5
Ripple, mV50170
Protection, A3.78
Temperature rise, °C10968
Review conclusionRecommendedNot recommended

Only in one review: Current 3 A (24 V 3 A power supply); Efficiency 85.5 % (12 V 75 W power supply); No load 0.1 W (12 V 75 W power supply).

24 V 3 A power supply: It performs very well at its rated 3 A; the transformer heats up at 3.5 A, so the author suggests lowering the protection threshold.

12 V 75 W power supply: It is the same 60 W supply: temperature is too high at the claimed 75 W, and protection is set much too 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.

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