Feature★ 3 second Instant heating without waiting★ Safe & Intelligent - It stops heating under no water flow.★ 0.1 second automatic power-off when leakage★ It heats water as the water passes through it, so you can use hot water as you like★ 3000W output tankless electric water heater eliminates long time waiting★ Constant temperature maintains the optimal water temperature for you★ Easy to install in bathroom or kitchen sink for washing dishes, food, clothes, etc.★ 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-offSpecificationRated Voltage: 110VRated Power: 3000WPlug: US PlugCurrent: 25-32AHeating Material: 304 Stainless SteelWater Temperature Range: 68-126°FStart-Up Pressure: 0.4-0.6MPaWaterproof Rate: IPX4Size: Approx. 20 x 13 x 6.5cm/ 7.87x 5.12 x 2.56"Note1. The unit needs a larger than 32 amps circuit breaker; the outlet water temperature won't be very hot because it is just 3KW, it can be use to wash hand or use in kitchen.2. Freely adjust water temperature by water flow.3. It should get water first, then link the electricity when installing.4. Better install it vertically to ensure long service time.Installation1. Drill into wall with electric drill2. Fix water heater with screws3. Connect hot water outlet & cold water inlet,and let cold water go through heater4. Connect water heater to electricity5. Test water heater Package1 x Electric Water Heater1 x Manual