Comparison · Power supplies

12 V 5 A power supply or АД-12-4A

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 5 A power supply (5 A vs. 4.5); Ripple: 12 V 5 A power supply (20 mV vs. 40); Temperature rise: 12 V 5 A power supply (80 °C vs. 111).

Model	12 V 5 A power supply2026Read review →	АД-12-4A2025Read review →
Voltage, V	12	12
Current, A	5	4
Test current, A	5	4.5
Ripple, mV	20	40
Protection, A	5.1	4.9
Temperature rise, °C	80	111
Review conclusion	Recommended	With reservations

Only in one review: Under load 12.4 V (АД-12-4A); Efficiency 85 % (АД-12-4A); No load 0.45 W (АД-12-4A).

12 V 5 A power supply: Low ripple and good temperatures at 5 A; synchronous rectification reduces heat, and protection is set close to the rating.

АД-12-4A: It has power headroom and low ripple, but an electrical-safety issue remains.

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.