Welcome to our store! 1. PIR motion sensor lamp holder: This lamp holder is designed to be easily installed with an E27 lamp base without the need for complicated additional equipment. 2. Automatic switching at night: The sensor can detect movements of people or objects and automatically control the lighting according to the set parameters, which is convenient and energy-saving. 3. Applicable lamp holder: This motion sensor light bulb holder is suitable for all E27 screw bulbs. It can turn your ordinary light bulb into a sensor lamp. 4. Intelligent light control: When a person or object is detected nearby, the light turns on automatically, and when no person or object is detected, the light turns off automatically, saving energy and extending the bulb's lifespan. 5. Applicable: Our motion sensor light base can be installed directly on the existing light socket, which can provide smart lighting for your basement, garage, closet, storage room, stairs or porch, freeing your hands. Item Type: Motion Sensor Optical Socket Material: ABS Weight: Approx. 73g / 2.6oz Voltage: 100-240V Package includes: 1 x Motion Sensor Light Socket