• 50W mini heater for aquariums, designed for fish or turtle tanks from 15 to 50 liters. • Compatible with freshwater and saltwater aquariums. • Equipped with an external temperature controller and a 1.6-meter cable for easy temperature adjustment between 20 and 34°C. • Digital LED display allows real-time viewing of the water temperature and the selected temperature. • Thick quartz glass construction, with excellent sealing, high heating accuracy, and long durability. • Includes two suction cups for mounting, a bottom cover, and an adhesive thermometer for added convenience.