[Strong Magnetic Base] No wiring or assembly is required for installation. Strong magnetic base securely attaches to any metal surface, even on moving or vibrating equipment. [Solar-Powered Charging] Powered by solar energy, these solar flashing lights charge automatically during the day and turn on automatically at night (the light only works at night and does not have a switch). [High Brightness] Features high-brightness LED beads and an excellent light diffusing lampshade. In complete darkness, its visible range is up to 500 meters (0.3 miles). [IP54 Waterproof] With an IP54 rating, the solar flashing lights are resistant to various types of bad weather, including fog, rainstorms, blizzards, and intense daytime heat. [Wide Application] This solar safety light can be installed on guardrails, construction sites, mailboxes, driveways, vehicles, or any place that requires a warning signal. Color: Yellow Material: Plastic Package Contents: 4 x Safety Light Outdoor Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allows an error of +/- 1-3 cm.