Citiger(TM) Light Sensor LED Night Light, Wall Lights, Automatic Dusk to Dawn Sensor, 110v-220v, US Plug, for Kid's Baby Room, Indoor Use (Square, 4 Pack, Orange) (Use smart full automatic light induction control technology): plug in the power, when the light dimmed, the lamp will automatically light up; when the lights turn on, the light will automatically turn off. (The light brightness will be changeable according to the darkness): If the indoor a little dark, the light brightness will be weaker. If the indoor is deep dark, the light brightness will be brighter and stronger. (Elegant and Practical): Designed with a fashion style, exquisite quality, adopt high quality LED and components, and also has a long lifespan (up to 50,000 hours.). (Energy-saving): It is high energy-saving, high brightness, less consumption (power only 1w). It is a good and green high technology energy-saving lighting product. (Uses): used in the bedroom, living room, bathroom, hotels, bars, offices, hospitals, shopping malls and the like. Suitable for home decoration, sleep assistance, feeding or urinate use.