Double Safety Protection: Upgraded electric pool heater features built-in thermostat control and fuse protection. Automatically stops heating when the desired water temperature is reached and maintains the set temperature. The fuse cuts off power to prevent overheating, providing enhanced safety for a comfortable and worry-free experience. Fast Heating: 1500W high-power heating element quickly warms water, efficiently heating 5 gallons in minutes. Energy-saving design helps reduce energy consumption while delivering reliable performance. Ideal for use in small pools, allowing children to enjoy warm water without discomfort. Anti-Scalding & Corrosion Resistance: Constructed with a stainless steel protective guard that prevents direct contact with the heating element, enhancing safety and durability. Features secure mechanical fixation with strong adhesive sealing for long-term, leak-resistant performance. Resists corrosion for extended use. Simple Operation: Easy to use—simply submerge the heater completely in water and connect to a 120V power source. Equipped with copper wiring for efficient electrical conductivity and rapid heat transfer to water. (Note: Always unplug the heater before removing from water.) Wide Application: Suitable for above-ground pools, buckets, washbasins, bathtubs, livestock use, car washing, construction sites, and more. Compact and lightweight immersion heater design makes it portable for outdoor activities such as camping. Can serve as a supplementary or backup water heating solution.