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See Chinese contents: GB 24850-2020 GB 24850-2020: Minimum allowable values of energy efficiency and energy efficiency grades for flat panel televisions and set-top boxes
This Standard specifies energy efficiency grades, minimum allowable values of energy efficiency, energy efficiency calculation and test methods for flat panel televisions and general-purpose set-top boxes. This Standard is applicable to LCD TV and OLED TV that work normally under AC220V, 50Hz power supply conditions; of which the main functions include ground, cable, satellite or other analog and digital signal reception, demodulation and display. It is also applicable to liquid crystal and OLED display device of which the main function is a TV, without a tuner, but it is circulated as a TV product. This Standard applies to set-top boxes that work normally under AC220V, 50Hz power supply conditions, including cable set-top boxes, ground set-top boxes, satellite set-top boxes and network set-top boxes.
