... for home radio, promotion gift, advertising gift, camping radio, eco-friendly products, outdoor radio, novel radio, emergency radio.Main Technical Parameters: Radio:1. ... charged under sunlight(500W/ M2 )35 – 42 hours13. Radio working time after being fully charged7 – 9 hours14. ... 6 hours15. Max. Luminous flux11– 14LMCharged by outside power1. Input voltage5 - 5.2V2. Charging interfaceDC plug 3.5*1 ...