Add a glow with this Smart LED Door Lock Sensor Light  Available in packs of 1, 2, 3 or 4 Light lasts around 5-15 seconds Using advanced PIR sensing technology, automatically identifies human body Light turns on when it detects people, and turns off automatically after 6-8 seconds Can illuminate the keyhole of your door as you are approaching Mini and elegant appearance, perfect for a door, drawer, closet and more Material: plastic Size: 81 x 46 x 30 mm Buying Options: 7.99 pounds instead of 19.99 pounds for 1 x light - save 50% 14.99 pounds instead of 39.98 pounds for 2 x lights - save 55% 22.99 pounds instead of 59.97 pounds for 3 x lights - save 53% 28.99 pounds instead of 79.96 pounds for 4 x lights - save 56%