/    Measurement database » Power supplies » 12 V 120 W power supply or RPS-120-27
Support the project on Patreon


Comparison · Power supplies

12 V 120 W power supply or RPS-120-27

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: Ripple: 12 V 120 W power supply (50 mV vs. 75).

Model12 V 120 W power supply12 V 120 W power supply2025Read review →RPS-120-27RPS-120-27Mean Well · 2018Read review →
Voltage, V1227
Current, A104.5
Power, W120121.5
Ripple, mV5075
Review conclusionWith reservationsWith reservations

Only in one review: In test 135 W (RPS-120-27); Efficiency 90 % (RPS-120-27); No load 0.5 W (12 V 120 W power supply); Temperature rise 66.5 °C (12 V 120 W power supply).

12 V 120 W power supply: Low ripple, but in reality it is a 100–110 W unit rather than a full 120 W supply.

RPS-120-27: Well built and handles the load reliably, but it buzzes noticeably, has high ripple, and is difficult to repair.

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.

Compare two modelsor

Similar comparisons

← All: power supplies