MOTION SENSOR: Using Advanced PIR sensing technology, automatically identifies human body. Automatically turn on and auto-off after about 5 seconds.BRIGHT LED BULBS: This light only activates in darkness, 4 LED bulbs is bright enough to make sure the keyhole can be seen at night without keeping the porch light on.FOR ANYWHERE USE: This kind of small lamp offers ideal gentle light for the bedroom, baby room, closet, closets, cabinet, corridor, workshop, basement, garage, stairwell, oil depots, roof, door, drawer, trunk, garage entrances and other many places.BATTERY OPERATED: They are powered by 1 piece of AA batteries (not included), please make sure the batteries are right placed.INSTALL EASILY: Come with an adhesive sticker, it can be easily stuck on the door. Easily use and operate.Appropriate SizeThe size of the light is 80mm * 46mm * 30mm, with 4 LED bulbs,the light is bright enough to make sure the keyhole can be seenat night without keeping the porch light on.Motion SensorUsing Advanced PIR sensing technology, the lamp can automaticallyidentify human body. It automatically turn on when you approachthe door and auto-off after about 5 seconds.Broadly UseThe light is not only used for the door lock, but also can be used as a night light in the porch or on the stairs.Working as a cabinet light, it auto-on whenever you open the closet or wardrobe, no more fumble in the darkness.Having one motion sensor light in the bathroom will be a wonderful idea, especially for kids' toilet. No more stumble at night.