If solar panel not getting the required sun light than the LED won’t work or can’t produce the brightest light as you would have expected. Make sure you place your light at a location where it gets direct sun light.
To fix solar lights not working, check and remove the battery pull tab, replace or deep charge the batteries, repair any damaged wiring, clean the solar panels, and ensure they’re positioned in direct sunlight. How Do You Reset a Solar Light?
If cleaning or moving the solar panel doesn't work, your next step is to check the batteries. Solar lights run off rechargeable batteries, and these can often be replaced. Professor Krishnamoorthy told me that 'you may be able to replace the batteries in a solar light. Many solar lights typically use rechargeable AA or AAA batteries.
These bright lights can fool your solar lights into thinking it’s still light out. Move Your Lights: If you can, move your solar lights to a darker area, far from those pesky artificial lights. This makes sure they’re only soaking up natural light.
Almost every solar light has an on/off switch, typically located at the back. During the day, the solar panel charges the battery, but if the switch is off, the lights won’t turn on when night falls. So, if your solar lights aren’t lighting up, the first thing to check is this switch.
Electrical engineering expert Harish Krinshamoorthy told me 'Cleaning the solar panel can often fix solar lights. Dirt, dust, and debris can block sunlight from reaching the panel, reducing its ability to charge the battery and power the light. 'Use something soft and mild to gently clean the surface of the solar panel.