Astra Depot 4X Amber 22-LED Car Warning Hazard Emergency Flash Strobe Light + Control Module The Latest High Quality LED Chip-Set Technology Comes with Control Module & 3 Flashing Modes, On/Off Switch Number of LED: 22 LED/Light 88 LED/Set Material: High Quality ABS Housing + PMMA Lens + LED Great for Emergency Workers, Postal Service, Construction Vehicle, Security, Snow Plows