This is a lightweight electric water heater with a perfect combination of inner quality and classical appearance, which applies for multiple demands of different families. Features: Immediately heating, just heating after 3 seconds, one-button operation. It is a directly heating type with high efficiency and low power heating tube, which can take advantage of the thermal energy maximally. This is a lightweight electric water heater with a perfect combination of inner quality and classical appearance, which applies for multiple demands of different families. Multiple safety measures such as anti-dry protection, hydroelectric isolation protection, and enclosure insulation protection. Built-in leakage protection device. Automatically power off without water. Over-temperature automatic power-off, automatic power-off when not working. It can be installed in the kitchen, rest room, bathroom or any other places you want optionally because of its characteristics of small area, strong applicability and convenient installation. Specification: Color: Golden / Red / Black (Optional) Durable: Up to 35,000 hours Safety: Built-in double leakage protection Reliable: Smart core, chip driver Power: 5.5KW Voltage: 220V, 50HZ Wire specification: 2.5 square copper core wire Use water pressure: 0.04-1.2MPa Waterproof rating: IPx4 Use water temperature: 30-55 ° C Control mode: Microcomputer type frequency conversion Size: 220 x140 x 65mm / 8.66 x 5.51 x 2.56 inch (appr.) Package List: 1 x Instant Electric Water Heater. Note: 1. About incoming and outgoing water volume problem, the heating function cannot be turned on when the water pressure is too low, and the hot water is only available when the water pressure is too high and the water output is small.2. The inner tank of the water heater should be filled with water, and can not be empty for heating.3. The water heater should be installed vertically, and there will be empty part when the water heater is installed horizontally or lying down, which will can't fill up with water. 4.The product power is 5500W, the power is high, the current generated by the work is large, the need to install a suitable circuit breaker to work normally, the air switch specifications ≥32A.