How to change the mode Group 1: choose low mode, wait about 5 seconds, when you see the flashing, close flashlight. then open it, you can switch to 3mode group or 5mode group.
Flashlight Protection explanations: (1) Mode memory: If the flashlight is turned on more than three seconds, the current mode memoried.Turn it off and then turn it on, is still the original model. If less than three seconds, close it, then open it, it goes to the next mode. (2) Low voltage protection: When the battery voltage is 2.9-3.1V, flashlight flash 2 times / sec, low brightness, which is a low voltage alarm. (3) Reverse battery protection: If your battery is reversed, do not worry, no problem will occur.
