The ZEX Purge-Cloud Illuminator Kit is a focused beam hi-intensity LED assembly that illuminates the purge-cloud, in your choice of colors, when you purge your nitrous line. Illuminates your purge cloud to let the whole world know you are nitrous equipped. Uses a special focused beam high-intensity LED to maximize the visual impact at night Available in red, blue, or green. PLEASE CALL TO ORDER!! 1-800-716-9635