The Ecco 5.4" 3945/3965 Series Round Flasher Light is the perfect choice for your vehicle's lighting needs. This flasher light is designed to provide superior visibility and safety, with 8 flash patterns and an amber lens. The light is easy to install and features a long-life, making it a great choice for any vehicle. The light is designed to fit in the supplied oval rear lighting grommet and is compatible with 12-24V systems. With its quick and easy installation, this flasher light is the perfect choice for any vehicle. FleetPride is your First Click in Heavy Duty®.