You get 6 MicroInverters. Serial numbers will differ from the pictures. The product is a case of 6 Hoymiles HMS-800-2T-NA microinverters, designed for solar energy systems with a power output of 800W and a voltage of 240VAC. These microinverters are used for grid-tie systems, converting DC from solar panels into AC for use in the electrical grid. They are manufactured by Hoymiles, a reputable brand in the industry, and are ideal for households looking to maximize their alternative energy supplies. The compact black design and reliable performance make these microinverters a popular choice for those seeking to reduce their carbon footprint and energy bills.