Safe: The heavy-duty stainless steel guard on the bucket water heater contains heating elements to avoid direct contact with people or animals for added safety, and the holes on the guard help release heat into the water faster. Dry burning will automatically power off. Thermostat, automatic shutoff function: Built-in constant temperature control, when the water temperature reaches a certain temperature, the electric water heater will automatically turn on and off to maintain the water temperature, without worrying about overheating. Lie in the bathtub every day and enjoy the comfort of hot water to relieve fatigue and relax. Note: The heater should not be in the water when working. Fast Heating: 1500W/2500W high power bird's nest water heater can quickly heat 5 gallons of water in a few minutes, allowing you to play quickly in a small pool and enhance the bonding of your home. Fast heating saves you time and electricity considerably. Easy to Use: The immersion water heater is easy to use, just put the electric heater into the water container, then cover the hot water completely with the heating element in the stainless steel protection, then plug it into any grounded wall socket. Note: The power cord and black handle should not be immersed in water. Wide Applications: Submersible water heaters can be used in containers of different sizes, such as small swimming pools, buckets, washbasins, and bathtubs, and can also be used to heat water to clean sinks, food, dishes, etc. to avoid exposure to cold water.