Fix that cloudy plastic covering the solar cells by coating it with a thin layer of clear nail polish or a spray on clear lacquer.
													
																	Cleaning plastic garden solar panel. 
									
	
		
	
																	These clear coatings render the plastic clear once again. 
																	Wipe the entire plastic solar panel down in a circular motion. 
																	A few easy maintenance steps can help clean cloudy solar lights. 
																	Plastic solar garden lights are a great addition to your property. 
															
													
									
	
		
	
																	Wash the panel and bulb with soap and water regularly to prevent built up grime from inhibiting the light s performance. 
																	Rainwater is low in mineral content but some people have hard water or mineral rich water from the tap. 
																	Scratches on a solar panel can create shadows and affect efficiency. 
																	Simply use clean water and a cloth covered sponge or soft plastic brush. 
															
													
									
	
		
	
																	Cover the areas surrounding the plastic either the housing for the cells or the lid of a light with a built in solar panel with painter s tape before applying the chosen clear coat material. 
																	Do not use any other cleaning agents like bleach as this will damage the surface. 
																	This spring i decided instead of replacing the old solar yard lights and try restoring the plastic cells do to oxidation. 
																	This should get a majority of the surface dust off of the solar panel. 
															
													
									
	
		
	
																	How to clean the solar panels fill a bucket with warm water and mix just enough mild detergent to work up a bit of a lather. 
																	Unfortunately they can get very dirty yellow and faded being outside all the time. 
																	Use a garden hose to spray water all over the solar lights. 
																	Restoring plastic solar cells like new.