【Specifications】50W aquarium heater, suitable for 15L-55L aquarium, also suitable for salt water and fresh water. 【Adjustable and Accurate】The temperature is adjustable, and the adjustment range is 20 ℃-34 ℃ (68 ℉-93 ℉). A free thermometer is provided, and the real-time temperature can be measured by attaching it to the aquarium. 【Safety】The aquarium heater is made of 2mm thick quartz glass, 33% thicker than ordinary glass, explosion-proof heating, not easy to break, which is very safe for people and animals. 【Stable and practical】This aquarium heater has beautiful appearance, short length, saving space for your fish. Adopts ceramic frame with 8-slot multi-branch heating wire, better heat dissipation, longer service life. Specifications: Power: 50W Temperature range: 20-34°C (68 - 93°F) Voltage: 220V-240V/50Hz Power cord: 0.9 meters Temperature error: +/-2°F Waterproof: IP68 Package includes: 1 x 50W aquarium heater 2 x suction cups Precautions: The heating part must be completely