Amid the global push for carbon peak and neutrality, the National Standardization Administration of China has officially released the updated national power efficiency standard GB 20943-2025. This new standard introduces stricter energy efficiency requirements for switching power supplies, chargers, adapters, PC power supplies, server power supplies, USB charging, and PD fast-charging products. It aims to continuously improve conversion efficiency, reduce standby power consumption, and promote the development of green and energy-saving power solutions. The successful release of this standard owes much to the contributions of its drafting organizations, including Huntkey, a leading power supply manufacturer that participated in the drafting process.

The latest version of the power supply energy efficiency standard drafted by Huntkey has been officially promulgated

GB 20943-2025, "Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for AC-DC and AC-AC Power Supplies," adopts a comprehensive power consumption evaluation method. It clearly categorizes energy efficiency into three grades, with Grade 1 representing the highest efficiency. Grade 3 aligns with but is not entirely equivalent to ERP VI efficiency standards. The standard specifies detailed requirements for:

Minimum average efficiency under working conditions for power supplies of different rated output powers.

Maximum active power under no-load conditions.

Minimum power factor under full-load conditions.

Among the 43 organizations involved in drafting GB 20943-2025, Shenzhen Huntkey Electric Co., Ltd. played a significant role in the standard's development. The company integrated its advanced technologies and innovative achievements into the standard. Notably, Huntkey pioneered a testing method for multi-port output external power supplies, which was adopted by the standard working group. This method, a first in China, involves allocating power and current to each port sequentially (i.e., a multi-output external power supply load combination method). It effectively addresses the issues of large deviations and poor consistency in efficiency test results for multi-protocol chargers, setting a new direction for the power supply industry and encouraging other enterprises to follow suit, thereby accelerating technological innovation and upgrading across the sector.

Huntkey has consistently participated in drafting national, industry, and group standards for power supplies and related products. To date, the company has contributed to nearly 40 published standards. Rooted in power electronics technology, Huntkey focuses on power supplies, energy storage, and thermal management industries, driving technological progress and leading the transition to low-carbon development. As a specialized provider of integrated R&D, design, manufacturing, and sales services for power and electronic systems, Huntkey serves sectors including IT, ICT, and AIoT. Its product portfolio includes power supplies, adapters, chargers, smart electrical solutions, heat sinks, precision components, inverters, and energy storage systems for applications in computing, data centers, consumer electronics, industrial automation, and renewable energy.