Features: This flashing light is powered by solar energy, so none wiring or batteries are required. It automatically charges during the day and flashes automatically at night to save energy. Built-in light sensors, this led light will flicker at night and not flicker during the day. This solar car flashing light features bright LED lamp beads that create a dazzling effect in dark. By making your car more visible to other driver, you can effectively prevent rear-end collisions. It is waterproof and and can withstand a wide variety of weather conditions. It also increases the visibility and safety of your car at night. These lights can be installed on any vehicle, such as cars, motorcycles, electric vehicles, and serve as signals lights for a variety of purpose. Specifications: Component: ABS Lighting Color: Green/Red/Yellow/Blue/Blue Red Shell Color: 01/Black Size: about 53x16x8mm/2.09x0.63x0.32inch Package Includes: 1Pc Solar Warning Light note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.