When it comes to cleaning solar panels, it's important to use a soft-bristled brush to avoid scratching or damaging the surface of the panels. Ideally, you should use a brush specifically designed for cleaning solar panels, which typically have soft, synthetic bristles that won't scratch the surface. Additionally, you should avoid using abrasive cleaners or solvents that could damage the panels. A gentle cleaning solution of water and mild soap is usually sufficient for removing dirt and debris from solar panels. However, it's always a good idea to check with the manufacturer of your particular solar panels for their recommended cleaning methods to ensure you're using the best approach for your specific panels