V-300 deep freezer refrigeration units are driven by fuel van engine and used for 10-16 m³ van cargo box .With QP16 or TM16 compressor and 134a refrigerant to be chiller and freezing function from -25℃ to +15℃. The voltage of V-300 is 12V/24V ,and it also has heating in function especially use in very cold area such as Russia.