<p>Product description</p><p>  Parameters:</p><p>✧Material: ABS </p><p>✧Waterproof: IP68</p><p>✧Rated power: 25W</p><p>✧Rated operating voltage: 110V - 120V</p><p>✧Automatic constant temp:75℉ - 82℉ / 25℃ - 28 ℃ (±1℃)</p><p>✧Security protection systems: anti-scalding surface treatment, anti-✧explosion, anti-cracking</p><p></p><p>✧Specifications :</p><p>Size: 6.3in x 3.2in x 1.8in / 16cm x 8cm x 4.5m</p><p>Weight (about): 0.35lb / 160g</p><p>Package contents: 1*Mini Fish Tank Heater+ 1 fish tank thermometer sticker</p><p></p><p>✧Information:</p><p>★Suitable for all shapes and materials fish tanks, whether it is glass or plastic, all can be used.</p><p>★Dedicated designed for small and mini sized aquarium under 3 to 5 Gallon Tank, intelligent temperature regulate, very easy to use.</p><p>★Suitable for all kinds of aquarium pets, tropical fish, goldfish, ornamental fish and turtles, can work in both brine and fresh water.</p><p></p><p>✧Attention points:</p><p>★In a long-term use, please regularly clean the water grass and impurities attached on the heater surface.</p><p>★The heater is completely sealed so please don't disassemble it, that will make it permanently damaged.</p><p></p><p>★It is designed to work under water only, please NOT turn it on when it's outside water, as dry burning might lead to malfunction. </p><p>★Please don't put it in the water if the wire or heater damaged</p><p></p><p>BIVIRIT 25W Aquarium Heater, Fish Tank Heater for Betta Smart Thermostat, Slim Design Fit 3 to 5 Gallon Tank, with Thermometer Strips</p>