Comparison · Power supplies

48 V 2.1 A, 100 W power supply or 12 V 6–8 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: In test: 12 V 6–8 A power supply (80 W vs. 77).

Model	48 V 2.1 A, 100 W power supply2026Read review →	12 V 6–8 A power supply2015Read review →
Voltage, V	48	12
Current, A	2.1	8
Power, W	100	100
In test, W	77	80
Review conclusion	With reservations	Recommended

Only in one review: Test current 1.7 A (48 V 2.1 A, 100 W power supply); Under load 12.27 V (12 V 6–8 A power supply); Ripple 50 mV (48 V 2.1 A, 100 W power supply); Protection 1.7 A (48 V 2.1 A, 100 W power supply); Temperature rise 64 °C (48 V 2.1 A, 100 W power supply).

48 V 2.1 A, 100 W power supply: Well built, cool-running, and low-ripple, but protection limits output to about 77 W.

12 V 6–8 A power supply: The supply performed well and regulated voltage accurately, though it can briefly shut down when a heavy load is connected abruptly.

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.