Comparison · Power supplies

36 W, 12 V 3 A power supply or 5 V 3 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: 5 V 3 W power supply (400 mV vs. 600); Temperature rise: 5 V 3 W power supply (50 °C vs. 138).

Model	36 W, 12 V 3 A power supply2026Read review →	5 V 3 W power supply2019Read review →
Voltage, V	12	5
Ripple, mV	600	400
Temperature rise, °C	138	50
Review conclusion	With reservations	Not recommended

Only in one review: Current 3 A (36 W, 12 V 3 A power supply); Power 36 W (36 W, 12 V 3 A power supply); Test current 2.5 A (36 W, 12 V 3 A power supply); No load 0.5 W (36 W, 12 V 3 A power supply); Protection 3.7 A (36 W, 12 V 3 A power supply).

36 W, 12 V 3 A power supply: Works for low-power, undemanding loads, but the author says he would not buy it himself.

5 V 3 W power supply: It works without overheating, but ripple is high, output current barely reaches its rating, and short-circuit protection behaves oddly; not recommended.

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.