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Comparison · Power supplies

24 V 300 W power supply or 5 V 3 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: Ripple: 24 V 300 W power supply (75 mV vs. 400); Temperature rise: 5 V 3 W power supply (50 °C vs. 135).

Model24 V 300 W power supply24 V 300 W power supply2025Read review →5 V 3 W power supply5 V 3 W power supply2019Read review →
Voltage, V245
Ripple, mV75400
Temperature rise, °C13550
Review conclusionRecommendedNot recommended

Only in one review: Current 12.5 A (24 V 300 W power supply); Power 300 W (24 V 300 W power supply); Test current 14.8 A (24 V 300 W power supply); Protection 14.9 A (24 V 300 W power supply).

24 V 300 W power supply: It has very low ripple and sound topology, but overheated during open-air testing without potting compound.

5 V 3 W power supply: It works without overheating, but ripple is high, output current barely reaches its rating, and short-circuit protection behaves oddly; not recommended.

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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