High power: The new square immersion heater is rated at 2000W, 120V (must use an outlet greater than 15A, the heater is rated at 15A) High power for fast heating , heats 5 gallons of water in minutes Higher Heating Efficiency: Heat from 70F to 105F, 5 gallons of water usually only takes 30-60 seconds, 50 gallons of water usually only takes 30-40 minutes, 200 gallons of water usually only takes 2-3 hours. the water heater can heat the water to boiling Avoid direct burns, safer protection, the holes on the protection help release the heat into the water faster. Portable and Versatile: You can use the portable submersible electric heater in many occasions. It supports use in containers of different sizes, such as buckets, basins, bathtubs, inflatable portable mini pools, etc. It is the first choice for jobs around the house and outdoors. Warning: 1. The heater must be completely submerged in water in working condition! 2.Please do not use it for more than 3 hours continuously! 3. More than 2 water heaters are needed to heat at the same time, please do not plug the two water heaters into the same outlet to avoid fire hazard! 4. Power must be disconnected before removing the heater! 5.For detailed use, please read the manual