Buyers Products Ultra Thin Square 2 Inch LED Strobe Light Series features a low profile design to fit a range of applications. The lights feature 18 different flash patterns and synchronous or alternating functions when linked with additional units. Whichever flash pattern you select will be remembered the next time you turn the lights on. The lights are rated SAE J595 Class 1 for visibility and IPX7 waterproof. They also feature a vibration resistant polycarbonate lens designed to handle the rigors of the road. The corrosion-resistant aluminum base efficiently dissipates heat to protect vital components. The lights are surface mounted. All required mounting hardware is included. Lights are backed with a five year warranty.