Solar-powered blue lantern with USB charging cable and instructions. - Model: SÖLR LANTERN - Colors: Blue, Green, White - Accessories: USB charging cable - Features: Solar charging capable - Condition: Used once briefly 3 years ago and then stored All three can be charged via USB and the lights turn on. While charging, two have green lights, but one remains red even after 2 hours of charging. I'm not sure how well the solar charging works. I'm unsure if one of them is charging via solar. The other two did. Please purchase if you are okay with this. Thank you for looking.