Sun Energy S200 Eco Plus Rainproof & Portable Solar Powered LED Light Charge by Sun Optically Controlled: Automatically switches off in bright light, Bulb Type: LEDs Four (4), Power Source: Solar Panel Poly-Silicon 5v 60mA, Solar Charge Time: 5 to 6 hours under bright sunlight, Multi-switch: Low-Off-High, Brightness: 17 lumens High / 7 lumens Low, Run time: 4+ hours (high), 8+ hours (low), Rechargeable & Replaceable Battery: Maintenance free rechargeable Ni-MH AA 1000mAh (included) 500 times charge and discharge Replaceable with care, Working Temperature: -20 to 50 degrees C, Rainproof & Durable