What is the fastest method to refurbish plastic headlights?

[Terry]

Remove dust and dirt from the surface. Daily car washing may leave polish or wax layers, so the first step is to wipe these clean. Go to the supermarket and buy some blue, low-viscosity, easily peelable tape to cover the edges of the headlights. If some areas appear hazy or foggy, you can also cover those sections. Soak a piece of 1000-grit sandpaper in cold water for 10 minutes, then evenly wipe the headlight housing. Sand in one direction back and forth to keep the surface moist. After wiping away the sanding powder, apply an appropriate amount of polishing compound/paste using a fiber cloth or microfiber towel onto the plastic housing. Some car headlights come with a built-in UV protective coating, which may be damaged during sanding. If you don’t want the headlights to deteriorate again, you can also apply a new protective layer yourself.