Heater and thermo set. 47.2 inches (120 cm) Aquarium Thermo & Heater Set, Nisso, Seaparex 600NEO+ Protective Heater R-300W x 2 Features: Heater and thermostat (temperature regulator) for viewing fish. The thermostat is a high performance compact type that can automatically heat up just by matching the dial. The heater has a compact design and has an empty firing prevention function. With 2 bottles you can reduce the unevenness of temperature in a large aquarium. Even if one breaks, the other is operated, the water temperature can be reduced if the water temperature is reduced. Set Contents: Nissan SeaParex 600 NEO x 1, Protect Heater R-300W x 2, Rated Voltage: AC 100V, 50/60Hz Control Temperature Range: 59°F - 15°C - 35°CHeater Power Consumption: 300W Thermo-Control Power: 1-600W Heater Outlets: 2 Outlet (max, total up to 600 W) Size (approx.) Heater body: 3) Diameter: 3 dia. Length 8.7 inches (220 mm). Power Cord: Approx. 4.9 ft (1.5 m) thermostat body (not including hanging hook): Width 2.7 x Depth 1.4 x Height 5.8 inches (6.8 x 3.5 x 14.8 cm); Power cord length: 4.9 ft (1.5 m) sensor cord length: 3.8 inches (1 m) sensor outlet cord: 30 cm).