具备单按键控制两级自动调光、

无限手动调光、预警闪烁（亮0.1S，灭1S循环）、低电量报警功能。

调光时具有亮度渐亮、渐暗功能，防止亮度突变的不适应。-With single-button control of two auto-dimming,

Unlimited manual dimming, flashing warning (light 0.1S, 1S off cycle), low battery alarm.

Dimming with brightness fade in, fade out function to prevent mutation in adjusting the brightness.