White plastic lampshade is yellow, is there a way to clean?
You'd better change the new one.There is no way to clean, only change..
Use detergent soak for an hour to wash wash will take most of the yellow, but as white as just bought only changed, there is a way to increase brightness, is in energy-saving lamps, because of energy-saving lamps have a droop, using longer would be dark.
You'd better change the new one, it's plastic, the long period of strong light accelerates its aging.
