- The Solar Lantern USB is a high performing, eco-friendly and collapsible solar lantern. It provides over 100 lumens of bright LED light on High mode and can run for up to 12 hours on Low mode when fully charged (no extra batteries required). The Solar Lantern USB can be recharged by micro USB input (cord included) or by the built-in solar panel in approximately 7-8 hours of sun. It measures 3.32″ x 3.32″ x 5″ when expanded as a lantern and packs down to less than 2″ in depth. Its 100% waterproof and dustproof design makes it a durable lantern that you can take with you anywhere.