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Comparison · Power supplies

12 V 1 W power supply or 5 V 2 A power supply with microUSB plug

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. 150).

Model12 V 1 W power supply12 V 1 W power supply2015Read review →5 V 2 A power supply with microUSB plug5 V 2 A power supply with microUSB plug2015Read review →
Voltage, V125
Ripple, mV100150
Review conclusionRecommendedWith reservations

Only in one review: Current 2 A (5 V 2 A power supply with microUSB plug); Power 1 W (12 V 1 W power supply); In test 3 W (12 V 1 W power supply); Test current 2 A (5 V 2 A power supply with microUSB plug); Under load 12.1 V (12 V 1 W power supply); Temperature rise 62.2 °C (5 V 2 A power supply with microUSB plug); Price 3.89 $ (12 V 1 W power supply).

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

5 V 2 A power supply with microUSB plug: Works acceptably up to 1.5 A, but voltage sags above that and it can interfere with some touchscreens.

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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