Capacity and Configuration:550L Freezing Capacity (Phocos) (Note: There appears to be some variation in capacity listings - some show 400L, others 518L/550L for the DDF-540 model)2 Doors (Phocos) - Double door designModel Name: DDF-540 (Phocos)Performance Features:Deep Freezing Reaching -25oC (Phocos)Fast Cooling with Effective Compressor (Phocos)Wide Climate Range from SN to T Class (Phocos) (suitable for various environmental conditions)Technical Specifications:R134a Refrigerant (Phocos) (environmentally friendly)Mechanical Temperature Control (Phocos)Foaming Door in C5H10 Material (Phocos) (for better insulation)