1.Environment Friendly & Energy Efficiency Design 2.Major Thermostats : EGO (German Brand) 3.Backup Thermostats : WAKO (Japanese Brand) 4.Hot Water Tank Insulation foam, UL approved 5.R-134a refrigerant: INEOS (Japanese Brand) Model No.:BD-2096 Type:Hot / Ambient Water Tank Capacity:Hot:4L Watt:Hot:750W Power:110V, 60Hz ; 220/240V , 50Hz Dimension:43 x 31 x 72cm RO or Filtration System:2 stage filtration system hang-outside Safety Design: 1. Double Protection with 2 Thermostats 2. Safety faucet body : Anti-scalded material 3. Safety faucet design: Avoid Child scalded by hot water