DE-Spark Emergency LED Solar Powered Strobe Warning Light, Road Construction Cone Traffic Light Flicker Beacon Lamp (Triangle Base) Waterproof and weatherproof with wireless design, easy and safe to install Contain 3 LED lights, service life up to 50,000 hours It charges in the sun, automatically turn on at night and turn off during the daytime, environmente-friendly It can work consecutively for 5 whole rainy days with fully charged Visual distance: within 1000 m; Flash frequency: 60 times / min; Body Size: 5.7  3.1 inch (Height * Diameter)