Material: iron Solar panel material: polysilicon silicon Size (length x width x height) : approx. 10 x 10 x 60 cm Rated power: 1W Voltage: 1.2 V LED light source: Color of light: warm white Lumens: 15 lumens. Battery: 1 x 1.2V 800mAh AA battery Solar panel parameters: 2V 100MA (included) Working hours: up to 8 hours.