The Flintstones would’ve definitely loved the Solar Rock Spotlights that come with pre-installed rechargeable batteries within what appears to be a rock-like case. These batteries are capable of storing energy converted by the solar panels which soak up the sun’s rays throughout the day. Integrated photo sensors within will turn the LED lights on automatically when dusk falls and turn them off when the sun rises. This means you’ll be able to have a brightly lit garden at night without running the risk of tripping over unseen power cables while saving on your power bill at the end of every month. Each $49.99 purchase comes with a trio of Solar Rock Spotlights.