Perfect as a nightlight for stairs, steps, hallways, cabinets and cupboards. These lights will turn on automatically when you sense movement. No more worrying about tripping in the dark every night. Motion and Light Sensor:The detection angle of the motion sensor is 120 degrees and the detection range is 3m. Power saving:If no movement is detected, it will automatically turn off after 15 seconds. They are not illuminated during the day or in a bright environment to save energy Easy to install:Just use the super strong 3M double-sided adhesive pad in the package. Stick it to any smooth surface. The perfect installation for stairs, steps, hallways, dark cabinets and closets. Battery:Each indicator is powered by 3 AAA batteries (the product does not include batteries). The slender shape and compact size are perfect for decorating your home while maintaining bright and warm light to ensure safety.