Battery installation : Open the laser back cover , battery cathode toward the inside ( head orientation ) , the anode at the switch ( the tail direction ) .
Opening laser : Use the key to open the switch lock in the tail , the green button notify us the laser is turn on , and the red button notice us it turn off .
Notice :
1. Laser is harmful to the human eye , Please don't direct people's eyes . Please save place cannot come into contact with the local children .
2. The working time should not be too long ( Should not be more than 5 minutes , Reached after 5 minutes should be stop 2 minutes may continue to work . ) , too long will cause the body heat , if the body heat , the body completely cool before continuing operation .