Similar to our extremely popular E6 and E6MINI, the S Series are an affordable alternate that also features 6 incredibly bright 3 Watt Next Generation LEDs but in a smaller all-aluminum housing. The S Series comes standard with am aluminum black outer flange and is available in Horizontal or Vertical Optics depending on your need. Available with an universal mount, the S Series is sure to fit just about anywhere you need additional light. With mounting space on vehicle becoming more scarce the S Series options Optics give you the flexibility of mounting the lights Horizontally or Vertically without sacrificing output or spread. The S Series features 20 built-in Flash Patterns and is fully synchronizable with other S Series lightheads. The S Series are fully encapsulated, which makes them 100% waterproof and vibration resistant. Designed by professionals for professionals, the S Series are designed for primary warning, not "auxiliary or secondary warning" like so many other similar lights sold today.