The upper and lower limits of the ratedpowerinput or rated current shall be marked on the appliance so that the relation between input and voltage is clear.
额定输入功率或额定电流的上限值和下限值应标在器具上，以使得输入功率与电压之间的关系是明确的。
2
If the Load is less than half of the RatedPower, then the input voltage can be the universal input voltage.
如果实际负载是额定输出功率的一半，则输入电压可以是通用输入电压。
3
When electric power coupling transformer at input current is less than rated value, public winding can be also overload.