INCREDIBLY BRIGHT: Warning Strobe Light Bar uses state of the art Gen 4 three watt LED technology: it illuminates a powerful ray of light, which can be seen in any direction even on a bright clear day. FEATURES: 15 Select-able flash patterns; Easy ON OFF cigarette lighter plug, 2nd button changes the strobe patterns and it memorizes the last pattern used. MATERIALS: Amber Emergency Light Bar exterior frame is made of double-layer aluminum and a PC clear lens with high transmittance. The base has 4 heavy duty magnetic mounts and protective rubber feet. ADVANTAGES: Magnetic Mount Strobe Light Bar is fully encapsulated and waterproof. All of the LED modules and flasher boards are epoxy coated, protecting it from all weather conditions. WARRANTY: Roof Top Light Bar Compliant with SEA J2498, IAF, OHSAS18001, ISO9001, and CE certified. We offer a full 3 year warranty from the purchase date.