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Comparison · Power supplies

12 V 300 W power supply or 24 V 300 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 300 W power supply (26 A vs. 14.8); Ripple: 24 V 300 W power supply (75 mV vs. 130); Temperature rise: 12 V 300 W power supply (83 °C vs. 135).

Model12 V 300 W power supply12 V 300 W power supply2025Read review →24 V 300 W power supply24 V 300 W power supply2025Read review →
Voltage, V1224
Power, W300300
Test current, A2614.8
Ripple, mV13075
Protection, A2814.9
Temperature rise, °C83135
Review conclusionNot recommendedRecommended

Only in one review: Current 12.5 A (24 V 300 W power supply); Under load 10.65 V (12 V 300 W power supply); No load 0.9 W (12 V 300 W power supply); Weight 1100 g (12 V 300 W power supply).

12 V 300 W power supply: The claimed 300 W is not borne out: it is effectively a 200–250 W supply that enters protection when overheated.

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

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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