Solar Lights - DIY Quick Fix. Basically, there's a battery inside that charges the solar panel. Unscrew the head of the light and replace the battery. Will work unless the battery chamber has corroded.
'frosted’ plastic reflects light away from the solar cells; clean, clear solar cells can capture much more light. Clear nail polish is perfect for rejuvenating plastic-covered solar cells that have become weathered and dull.
Great idea for a back yard: Use solar lights on the fence. Take a and cut them into squares to fit the existing fence posts. Using galvanized screws - not nails - to screw a "L" bracket to the underneath base. Then on top, screw on the stake.
80 Brilliant DIY Vintage and Rustic Garden Decor Ideas on A Budget You Need to Try Right Now