With advanced dusk-to-dawn sensor technology, this smart lamp holder can instantly upgrade an ordinary external lantern to an automatic night light, without manual intervention, automatically lit at dusk or porch lights, quietly extinguished at dawn, not only to achieve high efficiency and energy saving, but also to build an invisible security line for your home. The well-designed intelligent spring-loaded contact system allows the photoelectric sensor socket to rotate 360° freely and easily adjust to the optimal light receiving Angle, ensuring that the photoelectric eye can accurately perceive the day and night change in any location, bringing unprecedented flexibility and convenience to your life. Whether it's LED, CFL, incandescent or halogen bulbs, with an E26/E27 standard base supporting up to 150W power, you can easily plug into our system to add smart dusk-to-dawn functionality to your outdoor lighting, and UL certification ensures peace of mind. The installation process is simple and fast, and requires no complex wiring modification or programming knowledge, so you can integrate this intelligence into your daily life in just a few steps. The compact volume design, only increased 1.61 inches in height, perfectly integrated into all kinds of porch lights, does not destroy the original beauty, so that the technology is invisible. However, please note that for best performance, avoid installing it inside an opaque or frosted glass luminaire. Color: Black.