ThunderEye 18" Inch Low Profile Magnetic Roof Mount Funeral Emergency Vehicle Strobe Warning Mini LED Light Bar - Purple/Purple 5th Generation TIR LED technology - 10 Modules with Four 3W LEDs per head - In total, 40 GEN5 three watt LEDs Sleek design with clear lens for stealth look - Increased vehicle fuel efficiency Features more than 15 Selectable flash patterns - Includes 12 feet of cable with cigarette lighter plug which includes an ON/OFF switch and pattern changing switch Built in self contained internal flasher fully encapsulated & fully weatherproof. 5 Year Hassle-Free Warranty - Lifetime Customer Support!