Avanti WD31EC Table Top Thermoelectric Water Cooler features Selectable Operational Modes: Normal or Energy Saver; Lightweight and Durable ABS Construction; Silent Thermoelectric Technology (No Compressor) for Use at Home or the Office; Full LED Display for all Functions; Push Button Faucets for Hot and Cold Drinking Water (Child Safety Guard on Hot Water Faucet); Built-In Cup Storage Compartment; Uses Standard 2, 3, or 5 Gallon Bottles (Bottles are not Included); Convenient Drain Plugs for Both Hot and Cold Water Reservoirs; Separate ON/OFF Power Switches for Hot and Cold Water Operations.