This document specifies the energy efficiency grades, minimum allowable values of energy efficiency and test methods for flat-panel televisions and general-purpose set-top boxes. This document applies to liquid crystal display (LCD) televisions and organic light-emitting diode (OLED) televisions that operate normally under an AC power supply of 220 V, 50 Hz, with primary functions of receiving, demodulating and displaying analog radio frequency signals, digital radio frequency signals and other digital signals. This document applies to set-top boxes operating normally under an AC power supply of 220 V, 50 Hz, including cable set-top boxes, internet set-top boxes and IPTV set-top boxes. This document does not apply to: a) Display devices adopting light-emitting diode (LED) as the display mode; b) Terrestrial set-top boxes, satellite set-top boxes and direct broadcast satellite set-top boxes; c) Integrated converged multi-network, multi-service and multi-hardware devices with incorporating set-top box functions; d) Set-top boxes equipped with 8K video demodulation and decoding functions.