Solar-powered lights can transform a garden after dark, but they often become dull and malfunction due to neglect. Paul Higgins, a specialist from Electrical Faults Fixed, advises checking solar lights at least monthly, especially in July when pollen and dust accumulate. "Like any other outdoor fixture, solar garden lights are exposed to various elements such as dust, stubborn dirt, bird droppings, and harsh weather conditions that can affect their performance over time," he said. Even a thin layer of grime can block sunlight from reaching the battery, causing failure. Allowing dirt to build up can also lead to cracking, letting moisture destroy the battery.
How to Clean Solar Lights in Five Minutes
Cleaning solar lights is straightforward. Mix a small amount of washing-up liquid with warm water, then use an old toothbrush to gently remove dirt. Avoid stiff brushes or harsh chemicals, as they can scratch the surface. "Avoid using harsh chemicals or abrasive cleaners and instead only opt for mild detergents when cleaning your lights, especially the solar cells' surface," Higgins said. Use only a few drops of washing-up liquid to prevent residue that blocks sunlight.
Dealing With Stubborn Grime
For persistent dirt, add one teaspoon of white vinegar to the soapy mixture. Vinegar's acidity cuts through tough stains without damaging the light. Minor scratches can be sealed with clear nail varnish to prevent moisture or dirt ingress. "If there appear to be any surface scratches on the solar cells after cleaning, a clear nail polish can be used as a protective layer to prevent scratches from occurring," Higgins added.
Final Checks and Benefits
After cleaning, inspect the battery, metal components, and plastic casings to ensure they are dust-free and undamaged. Regular monthly maintenance, especially in July, keeps solar lights bright and extends their lifespan, allowing you to enjoy summer evenings in a well-lit garden.



