2.cold light source,small heat,prolonged continuous use.

3.stunning  beauty,and has excellent heat dissipation.

4.a variety of alternative work patterns,(1)strong light(2)gradually bright(3)pulse

5.automatic shut-down,low-power warning 

6.a digital display shows the time ,clanrity,and time can be 5-40seconds in accordance with the needs of its customers can continuously tunable 

7.sleep function,saving battery

8.automatic memory,automatically preserve the function and work time of the latest use