For 4 hours of charging in full sunlight, the LuminAID light provides up to 6 hours of light on the high setting and 8 hours of light on the low setting. Weighing just 4.5 oz., the LuminAID light is highly portable, waterproof, and can float. The solar circuit has a rechargeable battery that can be re-charged up to 800 times, and the light comes fully charged.