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Comparison · Power supplies

12 V 100 W power supply or 24 V 100 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 100 W power supply (13.3 A vs. 5); Ripple: 12 V 100 W power supply (450 mV vs. 800); Temperature rise: 24 V 100 W power supply (84 °C vs. 135).

Model12 V 100 W power supply12 V 100 W power supply2025Read review →24 V 100 W power supply24 V 100 W power supply2015Read review →
Voltage, V1224
Current, A8.33
Power, W100100
Test current, A13.35
Ripple, mV450800
Temperature rise, °C13584
Review conclusionWith reservationsRecommended

Only in one review: In test 120 W (24 V 100 W power supply); Under load 23.8 V (24 V 100 W power supply); Protection 13.3 A (12 V 100 W power supply).

12 V 100 W power supply: The board heated noticeably at 7 A in open air; the author thinks a potted enclosure may improve cooling.

24 V 100 W power supply: It runs reliably at 100 W and handled nearly 120 W, though the author notes safety and component-margin concerns.

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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