Comparison · Power supplies

36 W, 12 V 3 A 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 36 W power supply (3 A vs. 2.5).

Model	36 W, 12 V 3 A power supply2026Read review →	12 V 36 W power supply2025Read review →
Voltage, V	12	12
Power, W	36	36
Test current, A	2.5	3
Ripple, mV	600	600
Protection, A	3.7	3.4
Review conclusion	With reservations	With reservations

Only in one review: Current 3 A (36 W, 12 V 3 A power supply); Under load 11.69 V (12 V 36 W power supply); No load 0.5 W (36 W, 12 V 3 A power supply); Temperature rise 138 °C (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.

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.