509L No frost TMF refrigerator Inverter Linear compressor Door cooling technology (Door cooling plus) Hygiene fresh filter (4 in-built filters) Low voltage start ability (fridge guard not required) Smart thin Q technology (Wifi capability) Extra large vegetable box Extra large chiller compartment Humidity control magic crisper LED lighting in fridge & freezer compartment In-built moveable twist ice tray 2 years unit warranty 10 years compressor warranty Water dispenser Express freeze function Silver finish