Usage Tips: Fast Heating This is a small size high efficiency water heater which produces hot water quickly and heats up quickly without waiting. IPX4 waterproof grade. Safety Easy to use with mounting accessories and instructions, automatic water temperature adjustment, LCD digital temperature display. Adjust water temperature freely through water flow, easy to operate. ApplicableSafe energy-saving heating, water-saving, no pollution, no exhaust gas. It can quickly heat cold water and is widely used in kitchens, bathrooms, precision toilets, etc. Energy saving Save water while waiting compatible hot water to reach the faucet, reduce heat loss, save energy and cost, no pollution. Premium steel material with mini design, durable, stylish and fashionable. Large LCD DisplayThe water tankless water heater is equipped with an LED display, which can see the temperature clearly. It can easily supply hot water at a temperature between 30C and 55C.