SMART MOTION SENSOR TECHNOLOGY: This lamp holder has a builtin PIR sensor that automatically detects motion and turns on the LED light without manual operation, delivering effortless convenience and efficiency. E27 ADAPTER COMPATIBILITY: The unit uses an E27 socket to convert your existing lamp holder into a motion sensor setup, compatible with a wide range of LED lights operating on AC 110V and 220V. AUTOMATIC ENERGYSAVING SWITCH: The intelligent lamp holder activates the LED when motion is detected and turns off when no movement is sensed, helping save energy. STURDY AND COMPACT DESIGN: Constructed from PC material for durability, with dimensions 5 x 5.7 x 5.7 cm, providing a compact fit that installs easily in most fixtures. USE SCENARIOS: Hallways and entryways for hands illumination when you arrive home. Closets and storage spaces for automatic lighting without searching for a switch. Stairs, garages, and utility rooms for safer, motionactivated lighting at night.