Comparison · Power supplies

100 W, 12 V, 8.3 A power supply in metal case or 12 V 8.3 A perforated 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 8.3 A perforated power supply (10 A vs. 8.3); Ripple: 100 W, 12 V, 8.3 A power supply in metal case (100 mV vs. 400); Efficiency: 12 V 8.3 A perforated power supply (86.5 % vs. 84); No load: 100 W, 12 V, 8.3 A power supply in metal case (0.5 W vs. 0.65); Temperature rise: 12 V 8.3 A perforated power supply (92 °C vs. 136).

Model	100 W, 12 V, 8.3 A power supply in metal case2026Read review →	12 V 8.3 A perforated power supply2026Read review →
Voltage, V	12	12
Current, A	8.3	8.3
Power, W	100	100
Test current, A	8.3	10
Ripple, mV	100	400
Efficiency, %	84	86.5
No load, W	0.5	0.65
Protection, A	11.5	12.5
Temperature rise, °C	136	92
Review conclusion	With reservations	With reservations

100 W, 12 V, 8.3 A power supply in metal case: A budget model with sensible cost-cutting, but with concerns about heat, the case, and low-frequency ripple.

12 V 8.3 A perforated power supply: A decent conventional supply overall, though its protection threshold is high and ripple could be lower.

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.