Shop Nilight 29.5″ Roof Top Strobe Lights 56LED Hazard Light Emergency Safety Warning LED Flashing Light Bar Magnetic Mount 12V 24V Cars Trucks Tractors Snow Plows Construction Vehicles in high quality, support 2 Years Warranty. This strobe lights is plug and play and comes with 2 magnetic cups with a total of 14 magnets. Just attach the magnetic base on any metal exterior of cars and plug the cigar lighter. Constructed with 17 FT long heavy duty cable, allows to install the light bar anywhere of the vehicle.