The Superior Signals Snow Plow Light LED04 Series is designed to provide complete coverage of the blade when used together. With six LEDS and 15 flash patterns, the driver and the surrounding traffic will know exactly where the blade is at all times. The horizontal set will show the exact position of the blade when it is down and in use while the vertical pair indicates blade position while stored in the travel position. These lights are encased to resist vibration from the blade running along the road, as well as corrosion from water, salt, and chemicals.