WUBEN L50 Aluminum Flashlight 1. Light mode and memory function: Half-press the tail switch to change these four modes, and then half-press it twice to become SOS. When you press the tail switch fully, you hear the sound of Di, turn it on or off. And this flashlight has a memory function, please remember the mode before OFF. 2. Low power consumption warning function: The flashlight has a low battery warning. In each mode, when the current battery is less than 30 minutes, the indicator light flashes 3 times. If it is still low, it flashes every five minutes. 3. Memory function and intelligent design: If you turn it off in high mode after a few minutes, turn it on. Multifunctional, it can illuminate the entire room sideways. Please note! Please pay attention to the direction of the USB cable. The USB port is waterproof, but it is a Micro USB port. 4. The charging indicator light indicates the color function: When red is turned on, the flashlight is normally charged; when fully charged, it turns green When it flashes green, it means the flashlight is turned on, please press the tail switch to turn it off If it flashes red, there is a problem with the battery, please replace it with a new one If red and green flash alternately, it indicates that the battery is reversed or the tail needs to be tightened 5. The package includes: Flashlight x 1 18650 battery x 1 USB charging cable x 1 Hand strap x 1