1.Energy Saving: LED bulb is used as the light source, the door lock sensor lamp has high efficiency, energy saving design, automatic stop working under strong light, wall light will become a great helper for you 2.Motion Detector: Intelligent infrared motion sensor, automatically turn lights on and off according to human movements in the dark, battery operated auto sensor motion detector with led will bring convenient for you 3.Wide Application: The mini motion sensor light has small size, battery powered led night light can be used in almost all places where lighting is needed, in the dark, keyholes, kitchens, corridors, stairs, s, etc 4.Test Light Efficiency: The door lock lamp battery operated works better in dark, test at night or in a dark room, the stronger the light, the lower the sensitivity of the motion sensor