This double-side emergency warning tracffic advisor vehicle strobe light bar series fits for all vehicles with 12V cigarette plug, each light includes 8 of 6- led blocks and each Led is 1 watt, there're 9 different flash modes available for this light and different length and colors of it are optional. It comes with 12V cigarette plug, strong magnetic base for easy installation and use. Product Parameters: ●Model No.：ES-317RLB ●Power:48W ●Voltage: DC 12V ●Light Source: 1-watt Leds ●Lamp Color Available: Red, Blue, Amber, White ●Cover Color Available: Transparent ●Material:PC Housing+ Aluminium Alloy Frame ●Flash Modes:7 Kinds ●Product Size:61*10.5*7.5cm optional Application: It fits for different vehicles that comes with 12V DC power source Installation: Simply suck it on the metal surface of the car roof and then plug the cigarette plug to the cigarette adapter of your car. Packing: One pack includes 1 double-faced led strobe light bar with magnetic bases and cigarette plug. Note: The right to operate strobe lights on a vehicle is controlled by Federal and State laws. Please check applicable laws before purchasing or using the strobe lights on your vehicle.