Power Source: Solar. Clean, endless and environment-friendly. Ideal for home living lighting, hurricane night emergency lighting and outdoor survival.,Lighting Range: 1 solar light bulb can light about 100 square feet, perfect for sheds, chicken coops, garages, emergencies or power outages. The solar panel also can be used as the charger for mobile phones.,Cable Length: 9.8 ft. You can either attach the solar panel to the roof or a sunny spot and introduce the wire into a room to charge the bulb, or use a 5-8V charger.,Working Time: Usually a 5-hour charge can last up to 8 hours. Saving, long life expectancy, low power consumption and rechargeability. Perfect for home lighting, camping, cooking, working, reading.,Lifespan: 1 year warrantty. There's an old saying over here and it's true - "Quality and service remain, long after price is forgotten" If you have any questions, contact us anytime!