Technical parameters: Model number: MHP - 500 Should the product: 500 l Refrigerant: optional Ambient temperature: 10 ~ 30 ℃ Temperature range: 0 ~ 60 ℃ Temperature fluctuation: plus or minus 0.5 ℃ Electrical source: 220V 50HZ Maximum power consumption: 1500W Note: both are fluoride-free liquid crystals