1.Solar panel 9v/5W polycrystalline silicon ,lifetime >10 years 2.Battery 6V/7A H igh temperature Li Battery , service lifetime > 3 years 3.LED type Bright LED with focusing mirror,view distance >800m 4.Controller Light control,can contorl the LED flashing all day or at night 5.Work time can work 72h when it basked fully for 8h 6.Work environment can work normally at -30~+65,constant work time> 200H. 7.Waterproof grade IP65 8.Assembly parts Screw