Colours: Available in Colourful, Warm White, or White. String Lights: Get 30/60 LED solar bulb string lights. Rechargeable: No sun? No problem! The lights feature a rechargeable battery for days when their solar charge just won't do. Solar: These lights will charge during the day using sunlight, and will automatically turn on during the night. Material: All copper wire. Size: 5ft lead & 20ft wire.