This is a rotating light with 4 LEDs on each side and a total of 32 LEDs. Each LED is equipped with a diffuser lens to diffuse light effectively, providing excellent visibility. Since it is a 12V and 24V, it is compatible with a wide range of marine applications such as cars, large cars, trailers, boats, etc. Easy to install, just plug it into the cigarette lighter socket. You can also use it in a variety of lighting modes by using 2 types of switches on the cigarette lighter socket. Each time you press the switch switch, the mode changes. Can be used for a variety of purposes such as off - steady on - alternating flashing - rotating - flashing - flashing - flashing - flashing - flashing - emergency indicator - security patrol light - work light - induction light - etc. LED light rotation means no motor operation noise, no noise problem. Includes a strong magnet on the mounting surface. Rubber caps included to help protect the mounting surface ■ Product Size (Approx.): Width 5.9 x Height 2.8 inches (15 x 7 cm); Body Weight (Approx.): 21.2 oz (600 g); Cord Length from main unit to cigarette lighter socket (approx): 11.0 inches (280 cm); Compatible Voltage: 12 - 24 V; Instruction manual is not included. Although it has a waterproof design, it is not completely waterproof, so there is a risk of water immersion in the case of strong water pressure on the back of the main unit. Please note that the cigarette lighter socket is not waterproof.