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Comparison · Power supplies

12 V 3 A desktop power supply or 12 V 36 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 3 A desktop power supply (3.5 A vs. 3).

Model12 V 3 A desktop power supply12 V 3 A desktop power supply2026Read review →12 V 36 W power supply12 V 36 W power supply2025Read review →
Voltage, V1212
Power, W3636
Test current, A3.53
Protection, A3.53.4
Review conclusionRecommendedWith reservations

Only in one review: Current 3 A (12 V 3 A desktop power supply); Under load 11.69 V (12 V 36 W power supply); Ripple 600 mV (12 V 36 W power supply); Temperature rise 91 °C (12 V 3 A desktop power supply).

12 V 3 A desktop power supply: Nearly identical to the adapter version: temperatures are normal and protection trips around 3.4–3.5 A.

12 V 36 W power supply: It handles rated power well, but output capacitance is low and high-frequency ripple is elevated.

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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