"极限输出功率" can be translated into English as "maximum output power" or "peak output power".
"Maximum output power" emphasizes the highest possible power output that a system or device can achieve under given conditions.
"Peak output power" often refers to the instantaneous or short-term maximum power output, especially in contexts where power output may vary over time.
Both terms are commonly used in engineering and technical fields to describe the upper limit of power delivery.