The full size light bars Night Crawler SM600 series are made of heavy duty aluminum base, durable PC shell, against waterproof. There are 51 Flash patterns with memory functions . Popular kinds of length are available. 360° visibility with high power LED which allow vehicle to be seen over great distances through any weather conditions. Which could be operated by the control box or cable out. It is permanently mounted to be used as a warning signal and make sure the vehicles get security on the road. Applications for e.g Snow Plow trucks, Wreckers, Tow Trucks, Semi Trucks, Big Rigs, Fire Engine, Rescue Vehicle etc. It can be seen day or night. Homologation with ECE R65 TA2, ECER10, SAE J845 CERTIFICATED.