1Multi-angle Installation: Equipped with two powerful suction cups, it can be installed at any angle, whether vertically or horizontally, as long as it is completely underwater. 2Sensitive and Reliable Thermostat: It can maintain a uniform water temperature and automatically shut down when the set temperature is reached, ensuring a stable biological environment in the aquarium. 3Accurate Temperature Control: The temperature dial is accurate, with a temperature range from 68F to 93F, and the temperature difference does not exceed 1C, which can fully control the aquarium environment. 4Dual Unit Temperature Display: Supports temperature display in both Fahrenheit and Celsius units, meeting the needs of different users. 5Wide Application: 195mm/7.7 inches, 25W power, suitable for 30L/8-gallon aquariums, whether for home or commercial use, it can meet the needs. Features: Multi-angle Installation: Equipped with two powerful suction cups, it can be installed at any angle, whether vertically or horizontally, as long as it is completely underwater. Sensitive and Reliable Thermostat: It can maintain a uniform water temperature and automatically shut down when the set temperature is reached, ensuring a stable biological environment in the aquarium. Accurate Temperature Control: The temperature dial is accurate, with a temperature range from 68F to 93F, and the temperature difference does not exceed 1C, which can fully control the aquarium environment. Dual Unit Temperature Display: Supports temperature display in both Fahrenheit and Celsius units, meeting the needs of different users. Wide Application: 195mm/7.7 inches, 25W power, suitable for 30L/8 gallon aquariums, whether for home or commercial use, it can meet the needs. Specification: Optional Power: 25W (Suitable for 30L/8 gallon tanks)/50W (Suitable for 60L/16 gallon tanks) Optional Plug: EU standard/US standard Material: Glass Suitable Scenario: Saltwater and freshwater; Fish tank and turtle tank Voltage: 220-240V/110-220V Wire length: 90cm(35.4 inch) Heater Size: 195mm (7.7 inches) Package Size: 40*70*240mm Package Weight: 170g Package list: 1*Aquarium Heater 2*Suction cups 1*Aquarium Heater 2*Suction cups