1.can use solar charge for torch,and within FM radio;can charge for mobile/mp3/mp4 etc. 2.Material:ABS,PS; 3.led:¡é5*4,8000-12000MCD; 4.Batter:1000mAh,3.7V; 5. Solar energy board:monocrystalline silicon,0.7W/5.5V 6.with solar charger/fm radio/torch/compass.