A solar-powered string light system offering colorful, customizable illumination with 6 vibrant color modes across 20 durable bulbs on a 44-foot cord Designed for both portable and permanent setups; includes an expandable housing and fully detachable power unit that recharges without disturbing the string light layout Equipped with a built-in rechargeable 4,000 mAh battery that provides up to 25 hours of illumination and includes mobile charging capabilities for small devices Recharges via its high-efficiency solar panel or USB-C; functions without the need for outlets or extension cords, ideal for patios, campsites, and outdoor environments Includes 44 ft (13.4 m) of nylon-braided cable with 20 shatterproof bulbs; features red, green, blue, purple, orange, and white color options plus a smooth color-cycle mode; IPX4 weather-resistant rating The BioLite Solar String Lights are portable, solar-powered lighting systems designed to deliver reliable, ambient illumination for outdoor spaces like campsites, patios, and off-grid gatherings. Built with weather-resistant materials and housed in a compact, expandable design, each set features shatterproof bulbs spaced along a nylon-braided cord and is powered by a built-in rechargeable battery with USB-C and solar recharging options, plus mobile charging capabilities. No outlets or extension cords are needed, making setup simple and self-sufficient. Available in four styles to suit a range of lighting needs