1.Bulb: Use Osram LED                                      

2.Function:high-low-off                                                

3.Use 3AA battery                        

4.Brightness:300lm for high mode, 100lm for low mode                                  

5.Runtime:10 hrs for high mode, 24hrs for low mode                                                   

6.Size:45X45X625mm                             

7.Beam distance: 40 meters                                  

8. DROP TEST: 1.0meters   6 times  

9. Weight : 344g