Ideal Brightness: Not too bright or too dim, but bright enough to lead you through the darkness without bumping into things.
Intelligent Sensor: Built-in sensitive PIR light sensor, auto-on when detecting the human motion within 10 feet/3M in the dark, auto-off after 20 seconds of no motion detection.
Energy Saving: No external battery required. With 550mAh rechargeable battery can support constant light for 2 hours and last 60 days on AUTO mode.