Motion Activated & Light Sensor: Our 2W 5.9inch 6000K battery operated ceiling light has motion sensor mode and it equipped with motion detection range up to 2-5 meters(9-16eet). The motion sensor light will turn on automatically when you come close and automatically turns off after 20 seconds of no motion detected. It will turn on only when it is in dark and when motion is detected. Battery Power & Energy-Saving: Our motion sensor ceiling lights are Powered by 4 x AA batteries (battery not included), and it can provide 6 months of light with an average use of 8-10 activations per day becasue of energy-saving and convenient design. What's more, motion activation, auto shut off and a light sensor also help prolong battery life. Constant Light for Battery Ceiling Light: Turn the switch to ON, the battery ceiling light will keep ON no matter it s day or night.