[Warning] The heater must be completely submerged in water when it is in working condition, do not use it for more than 3 hours continuouslyPlease do not plug two heaters into the same outlet to avoid fire. Please remove the heater before touching the waterApplication scope The immersion heater can be used in a variety of vessels. Place it under water and plug it in, it will automatically heat the water. You don"t have to worry about your plastic buckets being melted by the heat pipe because they have a jacket and never touch each other.Product .Power Rating : 3000 (W)Note: Due to manual measurement, please accept 0-3cm variation. Thank you for your understanding. The screens are calibrated differently. The color of the product shown in the photos may vary slightly from the actual product. Please refer to our sizes before ordering.Delivery quantity: 1 set About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we"ll make you feel satisfied.