ETL CE certificate and passed UL NSF testing, 110V, 60HZ, US plug. Pan Diameter:52x52cm (21″x21″), Single pan, Material: stainless steel, four wheels with brake,low energy consumption, automatic defrost, 1 year warranty for parts Heavy duty compressor inside, already filled in refrigerant R410a ,machine size: 23.62”x23.62”x34.05”(60x60x86.5cm) Free shipment to commercial address, 2 stainless steel spatulas and user manual comes with machine Available to use in bars, cafes, milk-tea stores, restaurants, hotels, bakeries, and so on Autot defrost, Equipped with PCB of Smart AI temp.controller, the Lowest temperature :-30C, already filled in full refrigerant gas before delivery.