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Comparison · Power supplies

12 V 2 A power supply or 12 V 1 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: 12 V 1 W power supply (100 mV vs. 230).

Model12 V 2 A power supply12 V 2 A power supply2026Read review →12 V 1 W power supply12 V 1 W power supply2015Read review →
Voltage, V1212
Ripple, mV230100
Review conclusionWith reservationsRecommended

Only in one review: Current 2 A (12 V 2 A power supply); Power 1 W (12 V 1 W power supply); In test 3 W (12 V 1 W power supply); Test current 2 A (12 V 2 A power supply); Under load 12.1 V (12 V 1 W power supply); Protection 2.3 A (12 V 2 A power supply); Temperature rise 131 °C (12 V 2 A power supply); Price 3.89 $ (12 V 1 W power supply).

12 V 2 A power supply: It overheats at 2 A; the author estimates its realistic continuous output at about 1.5 A.

12 V 1 W power supply: Despite its simple design, it delivered 3 W without overheating, with stable voltage and acceptable ripple.

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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