<b>Uniclife HT-6050 Aquarium heater - Best for 10-15 gallon Aquarium </b> <br> <br> Unilcife heater is made of heavy-duty EXPLOSION PROOF Quartz Glass and provides required heating for your aquarium. Easy to adjust and view the current temperature from 68°F to 93°F (20°C - 34°C). <br> <br> This double insulated heater is safe in use and can easily be installed by attaching the 2 suckers to the glass. <br> <br> The heater must be fully submerged and placed diagonally vertically in the aquarium rather than horizontally. <br> <br> A stick-on type thermometer enables you to check the water temperature whenever you like. <br> <br> <b>Specifications: </b> <br> Recommended Tank Size: 5 - 15 gallons <br> Temperatures range: 68°F to 93°F (20°C - 34°C) <br> Measure: 8.6" x 1.2" (L x D) <br> Voltage: 110~120 V 60Hz <br>