low power consumption
Technical term used in computing and electronics to describe devices or components that use little electricity.
This processor features low power consumption.
Choosing a low-power device makes the battery last longer.
省電力 means 'power saving' and emphasizes the action or feature of saving energy, while 低消費電力 simply states that consumption is low.
reduced power state; low-power state
Compound of 低 (low), 消費 (consumption), and 電力 (electric power).