What does "LX" mean in "Lighting standard is 300LX"? Is it related to Wa?

Although the symbol lx refers to the illumination of the light, the illumination of the light is also closely related to the wattage of the light. Under normal circumstances, 300lx illumination is equivalent to a 300-watt LED lamp. I cannot understand the concept of 300 watts. It is impossible for our home LED lamps to have such a high wattage. Only in some public areas, such as stadiums, hotels, etc., will LED lights with such high wattage be used. For example, the wattage of the bedroom lights we usually use is about 24 watts. Since the living room area is relatively large, the wattage of the LED lights in the living room is about 36 watts