Features: Equipped with high sensitivity infrareds sensorings technology, this motion sensorings light socket adapter automatically illuminates upon detecting movement, ensuring handsfree convenience and energy efficiency. Features intelligent brightness adjustment based on ambient light levels and PC construction for heat resistance and long performances in high traffics areas. for households, property managers, and safety conscious users needing automated lighting solution in transitional spaces. Optimizes visibility in stairwells, corridors, basements, and entryways where sudden illuminations prevents accidental trips and falls. universals E26/E27 base compatibility allows effortless retrofitting of existing fixtures without wiring modifications, supporting LED/CFL/incandescent bulbs. Specifications: Materials: PC Size: 56x56x120mm Quantity: 1PC, 2Pcs(optional) Package Includes: 1PC E27 Light Bulb Adapter note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.