The E27 lamp holder is suitable for E27 LED bulbs and features a light and darkness sensor. You can activate its sound detection sensor with a hand clap to turn the lamp on, and it will automatically turn off after about 50 seconds. Using the E27 lamp holder equipped with sound detection sensor makes it easier to control lighting, especially when you're tired or want to save electricity if you forget to turn off the lamp. This E27 LED lamp holder provides convenience and energy efficiency in everyday use, making it a practical choice for any space.