Comparison · Converters

5 V UPS or Adjustable power supply kit board

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: 5 V UPS (2.8 A vs. 2).

Model	5 V UPS2019Read review →	Adjustable power supply kit board2016Read review →
Current, A	2	2
Test current, A	2.8	2
Review conclusion	Not recommended	Recommended

Only in one review: Voltage 5 V (5 V UPS); Under load 27.8 V (Adjustable power supply kit board); Ripple 100 mV (5 V UPS); Temperature rise 78 °C (5 V UPS); Price 1.17 $ (5 V UPS).

5 V UPS: It is cheap and handles the rated current, but the author was disappointed by the large voltage drop when switching to battery.

Adjustable power supply kit board: The board is straightforward to assemble and regulates voltage and current well, though it deviates at maximum voltage and current.

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.