Comparison · Power supplies

36 W, 12 V 3 A power supply or 19 V 3.42 A 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: 19 V 3.42 A power supply (5.4 A vs. 2.5); Ripple: 19 V 3.42 A power supply (300 mV vs. 600); No load: 36 W, 12 V 3 A power supply (0.5 W vs. 2.2); Temperature rise: 19 V 3.42 A power supply (130 °C vs. 138).

Model	36 W, 12 V 3 A power supply2026Read review →	19 V 3.42 A power supply2022Read review →
Test current, A	2.5	5.4
Ripple, mV	600	300
No load, W	0.5	2.2
Protection, A	3.7	5.4
Temperature rise, °C	138	130
Review conclusion	With reservations	With reservations

Only in one review: Voltage 12 V (36 W, 12 V 3 A power supply); Current 3 A (36 W, 12 V 3 A power supply); Power 36 W (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.

19 V 3.42 A power supply: The cheap PSU works, but has high ripple, heat, and weak protection; the author modified it for lighter loads.

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.