--Totally submersible, waterproof double insulation, durable and safe design. --Keeps the water temperature steady. Its design is anti-rust, useful and durable. --18-34°C temp rang, high precision, suitable for most fishes, meeting different environmental needs. --Made of high quality stainless steel material, anti-rust, explosion-proof, anti-collision, 0.5MM wall thickness, stable and durable to use. --Use new nichrome electric heating wire with better thermal conductivity, faster and more stable heating. --Power indicator, ensures safe operation. --50W, 100W, 200W, 300W, 500W, different powers for different sizes of fish tanks. --Can automatically adjust the temperature, good for fish in the aquarium. --Heater protective case is perfect to protect your fishes in tank from water heater scalding. Can also protect the heater from accidental breakage to avoid damage and hurt. --Detachable design makes it easier to adjust it at the length you need. --With suction cup design, it is quite convenient for you to install it in tank.   Specifications: --Color: Blue --Material: Stainless Steel --Plug: EU Plug --Wattage: 50W / 100W / 200W / 300W / 500W (Only EU Plug) --Voltage: 220-240V  --Frequency: 50/60HZ --Suitable: Freshwater --Temperature Range: 18~34℃ / 64~93°F Package Included: --1 x Submersible Aquarium Heater --2 x Suction cup