Model: SD/SC-558 Outer size: 1865*840*885 Inner size: 1690*670*490 Refrigeration range: quick freezing ≤ -18 ° C ~ 0 ° C Rated power: 255W Effective volume: 558L Weight: 100KG Compressor: stand-alone | Model: SD/SC-818 Outer size: 2100*1000*885 Inner size: 1905*810*490 Refrigeration range: quick freezing ≤ -18 ° C ~ 0 ° C Rated power: 470W Effective volume: 818L Weight: 140KG Compressor: dual machine | Model: SD/SC-1018 Outer size: 2510*1000*885 Inner size: 2305*810*490 Refrigeration range: quick freezing ≤ -18 ° C ~ 0 ° C Rated power: 495W Effective volume: 1018L Weight: 175KG Compressor: dual machine |