The Strobes N More E Purple Series is here with light output and features second to none. We have made these lights with Linear optics for greater side to side spread giving you better visibility at intersections. This 4 LED E Series Grill light features 4 incredibly bright 3 Watt Next Generation LED's. The E Series feature 53, (yes 53!) built in Flash Patterns can be fully synchronized with other Purple Series light heads. These lights are fully encapsulated, which makes them 100% waterproof and vibration resistant. Designed by professionals for professionals the Purple Series are designed for primary warning, not "auxiliary or secondary warning" like so many other similar lights sold today. The Purple Series lights offer greater flash pattern selections, superior light output, synchronize capable, in an easy to install flush mount design. Optional Single Mount available below can be used to mount the units behind a grill, on a rear deck, push bumper, or from a headliner. These lights are built for heavy duty use but economy in mind. Don't let the low price fool you, these are serious little lights.