solar cell: 2.5v, 120mA monocrystalline silicon    
battery: 1.2v,  1800mAh                       
led: dia. 10mm x 6pcs or 12pcs                             
flashing frequence: 300 times per min. 20% more or less                                                            visible distance: more than 500 meters      
size:  166 x 115 x 65mm