Can make 5 gallons of water warm in a few minutes. Before inserting the heater, please make that the heater is completely immersed in the water then connect the power supply. With stainless-steel protect cover, submersible water heater will prevent the heating Elements is in direct contact with people or animals and heat dissipates to the water faster by flowing through the holes in the guard. The holes on the guard dissipates heat into the water faster. Immerse in water at an appropriate water level and plug into any grounded wall outlet. Then the immersion heater can start working. Immersion Water Heater has a timing function. It can set the time by pressing the SET key. When the time is over, the will be automatically cut off and a beeping alarm will be issued. Prevent accidents caused by forgetting when busy. Warning 1. Make that the immersion heater is completely submerged in water. 2. Turn off the switch before Pressing the water. 3. The for setting the heating time is shown in the picture. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Material: Plastic+Stainless Steel Package Contents:1 x Water heater