Comparison · Converters

Universal USB-powered voltage converter or 12 V UPS, 12 W version

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 UPS, 12 W version (16 W vs. 14); Test current: Universal USB-powered voltage converter (2.3 A vs. 1.8); Price: 12 V UPS, 12 W version (1.88 $ vs. 4.23).

Model	Universal USB-powered voltage converter2019Read review →	12 V UPS, 12 W version2019Read review →
Voltage, V	30	12
Current, A	2	1
Power, W	15	12
In test, W	14	16
Test current, A	2.3	1.8
Price, $	4.23	1.88
Review conclusion	With reservations	Recommended

Only in one review: Ripple 75 mV (12 V UPS, 12 W version); Temperature rise 92 °C (12 V UPS, 12 W version); Weight 52 g (Universal USB-powered voltage converter).

Universal USB-powered voltage converter: An interesting, versatile converter, but its readings are inaccurate and current adjustment can malfunction.

12 V UPS, 12 W version: The board was liked: it holds its rated current steadily and is suitable for its intended use despite minor drawbacks.

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.