NESCO FD-75A, Snackmaster Pro Food Dehydrator, Gray Adjustable thermostat allows you to dry different foods at proper temperatures (95-160 F) Powerful Top Mounted Fan. 600 watts of drying power. 120 Volt Comes with 5 trays, but is expandable to 12 trays. (Trays are 13 1/2" in diameter) Opaque Vita-Save exterior helps block harmful light which destroys nutritional content of food being dehydrated Patented Converga-Flow drying system forces air down the exterior pressurized chamber (not through the trays). The hot air is forced horizontally across each individual tray, converging on the core for fast, even and nutritious drying. No flavor mixing and no need to rotate trays Made in the USA of Global and Domestic parts