The Dynalite M1000 Professional Flash System includes 4 flash heads with cables, perfect for professional photography setups. The flash lighting units are powered by AC and have a power output of 1000W, ensuring a bright and high-quality light output. The Dynalite brand is known for its reliability and compatibility with other Dyna-Lite products, making this flash system a versatile and valuable addition to any photo studio setup. The sleek gray color and included heavy-duty case make this system easy to transport and store for on-the-go photography.