ST19C Mini Compressor Condensing Unit for Refrigerators and Air Conditioners Model: ST19C/ST19CS Voltage: DC 12V–24V–48V Rated Input Power: 30–135W Cooling Capacity: 35–400W Weight: 1.5 kg Noise Level: 40–55 dB Unit Dimensions: 235 mm (L) × 178 mm (W) × 155 mm (H) Applications: Suitable for small refrigerators, chillers, cabinet air conditioners, tent air conditioners, etc., as well as for cooling fish tanks and human body temperature. Precautions: The power cord must not be too thin or too long, otherwise the unit will not start! A power source that meets the specifications must be used!