Check the listing for details. 4x Dusk to Dawn E27 PIR Motion Sensor Lamp 12W LED Bulb Light Infrared Motion. Condition: New. Listed at 9.49 USD. E27 PIR Motion Sensor Lamp 12W LED Bulb with Motion Sensor Infrared Radiation Motion Detector Energy Saving Light Features 1.Automatically turn on/off with PIR motion detection. Durable and energy-saving, long lifespan, anti-mosquito dust. High sensitivity, high light, low consumption, no stroboscopic, high color rendering index. This product is suitable for: doorway, courtyard, gazebo, stairway, corridor, garden, etc. 2.High quality SMD lamp beads, high brightness, no flicker, no eye damage. A PIR sensor and a light sensor are built in, which automatically turns off during the day and turns on at night when motion is sensed. The bulb is a fully enclosed lampshade that does not accumulate dust and allows the mosquito to fly into the damaged lamp bead and chip, which is durable and beautiful. 3.Integrated intelligent IC, safer, more stable, no potential safety hazard. The color rendering index (CRI) of the bulb exceeds 85. The higher the CRI, the more realistic the naked eye looks. Specifications: Base Type: E27 Voltage: AC85-265V Power: 12W LED Type: 2835 SMD Emitting Color: White Color Temperature: 5800-6500K Body Material: PC Detection Distance: 3-5 meters Lasting Time: 30-45s Automatically turn on/off with PIR motion detection. Durable and energy-saving, long lifespan. High sensitivity, high light, low consumption Suitable for corridor, pathway, stair, garden, yard, etc. Notice: 1.The sensor head faced to Exit/Entrance 2.The lamp should be keep far away from which temperature is high and sensitive place. 3.Not put any big object around it. Work principle: In sensor range, it will turn on, works about 30-45 seconds. After 30 seconds .if you not move,the lamp will turn off. It only works in dark environment or at night.