pyroelectric infrared sensor， The LED will be switched to Bright light for about 30 seconds if PIR (pyroelectric infrared sensor) motion sensor is activated. The motion-sensing light is triggered when someone or something enters its 3-5 meters range within a 120 degree sensing angle.Do not have micro light in dark(dim light)Features: Stylish and exquisite appearance， it is convenient to install. . Protect function: over charging， over disch arging， over current， short circuit. Mount on the wall easily and quickly. High brightness， intelligent energy-saving. High efficiency， long service life. Constant solar energy.Specifications:Stainless material: ABS + aluminum (sand blasting)Solar panel: 0.55WattLi-ion battery: 3.7V 800mAhLED: 16 pcs， 1 WattRay sensor: Auto-light at nighPackage list: 1 * Solar LED outdoor light 2 * Mounting screw 1 * User manual