High Heat & Low Power Consumption - The PID temperature control algorithm and intelligent frequency conversion technology allow for high heat while minimizing power consumption. The power size is adjustable, ensuring efficient and energy-saving operation. Ipx6 Waterproof - With an IPX6 waterproof rating and accurate dual temperature sensing probe, this heater is designed for safety. It continuously monitors the fish tank to maintain a stable temperature. Fast Heating - Equipped with silicon carbide sand filling and high purity nitinol wire, this heater efficiently conducts heat, resulting in faster heating and greater energy savings. Easy to Use - The external temperature adjustment allows for easy and convenient operation. The temperature display can be switched between ℃ and ℉, and a long press of the temperature adjustment key enables quick switching. Digital Display - The high-definition LED display provides real-time temperature monitoring day and night, making it easy to keep track of the current fish tank temperature.