Features: 3 seconds that is hot, really thermostat without waiting. Safe and intelligent, no water flow stops heating. 0.1 second automatic power-off when leakage. It heats water as the water passes thru the unit, instant heating, so you can use the hot water as you like. 6500W output tankless electric water heater eliminates long time waiting. Constant temperature maintains the optimal water temperature for you. Easy to install under the bathroom or kitchen sink for washing dishes, food, clothes, faces and other functions. Suitable for universal water pipe: 1 / 2 inch diameter (inflow or outflow). Various protections: Leakage protection, IPX4 waterproof, Dry heating protection, Water-electricity isolation, Auto power-off at inactive state, Over-temperature automatic power-off. Specifications: Rated Voltage: 220V Rated Power: 6500W Current: 30A Color:Gold Heating Material: Aluminum Water Temperature Range: 68-126F Start-Up Pressure: 0.4-0.6MPa Waterproof Rate: IPX4 Size: Approx. 26.5*20*7.8cm/ 10.43x 7.87 x 3.08" Weight:2.15kg NOTICE: 1.The water heater need a larger than 40 amps circuit breaker; the outlet water temperature won't very hot because the water heater just 6500W, so it can't be used to bath , it can be use to wash hand or use in kitchen. 2.Freely adjust water temperature by water flow. 3.Please note this item should get the water first and then link the electricity when installing. 4.You'd better install this item vertically to ensure long service time. Installation Steps: 1.Drill into the wall with electric drill 2.Fixing the water heater with screws 3.Connecting hot water outlet & cold water inlet,and let cold water go through water heater 4.Connecting water heater to electricity 5.Testing water heater and finished Package Included: 1 x Electric Water Heater 1 x Manual Malfunction: No hot water running out: No cold water going through water heater, low water pressure or water inlet blocked up. Solutions: Awaiting cold water, using under normal water pressure, cleaning the water inlet filter. Water leaking from water outlet or water inlet: Shower hose or flexible hose is not well sealed. Solutions: Reconnecting or change another hose. E1 on display:Temperature excursion. Solutions: Turn off water heater, and let cold water go through it for a while. E2 on display: Electric leaking; E3 on display: Malfunction of temperature prob.