WarningThe heater must be completely immersed in water when it is working. Do not use it for more than 3 hours continuously. Please do not plug two heaters into the same socket to avoid fire.Remove heater before contact with water. Applications Immersion heaters can be used in a variety of containers. Put it underwater and plug it in and it will automatically heat the water.You don't have to worry about your plastic tubs being melted by the heat pipes, as they are sheathed and won't touch each other. Product .Rated power: 3000 (W)Note: Please accept 0-3cm variation due to manual measurement. Thanks for your understanding. Screens are calibrated differently. The color of the product shown in the photo may be slightly different from the actual product. Please refer to our dimensions before ordering. Delivery Quantity: 1 set