LED Sensor Light, Sensor Lamp 3W 110V Flexible LED Motion Sensor Lamp Automatic Light Bulb Cool White US Plug 3W 110V Flexible LED Motion Sensor Lamp Automatic Light Bulb Cool White US Plug The lamp has a photosensitive internal switch that only allows the light to be activated on when the ambient light is low, or dark. At this time this light will turn on automatically if the infrared detector or sound detector detects changes in its patter, such as when someone walks into its area of detection The light will stay on for about 30-60 seconds until&nbsp; the infrared detection ceases With flexible tube,you can adjust the light angle freely