Specification Brand : PULACO BulletPoint1 : PULACO 50W heater: The heating device is made of heat-resistant quartz glass, explosion-proof and strong thermal conductivity. It can be used for 6-10 gallon glass or acrylic fish tanks. BulletPoint2 : Easy to operate: This heater is different from 25W heaters. It is designed with an external controller for temperature display and temperature adjustment, which can freely adjust the temperature you need (68°F-93°F). BulletPoint3 : Intelligent temperature control: The heater effectively maintains the temperature you preset before, and stops heating when the water temperature reaches the preset temperature, and restarts heating when the water temperature is lower than the preset temperature by 2-3°F.The red light on the LED screen indicates that the heater is heating, and the blue light indicates that the heater has finished heating and is in a constant temperature state. BulletPoint4 : Note: Do not operate or leave product plugged in when your water tank is out of water, heater should be fully submerged into water. It is better to install a water pump to help water circulating while heating. IncludedComponents : Heater ItemDisplayDimensions_Length : 3.9 inches ItemName : PULACO Small Aquarium Betta Heater for 6-10 Gallon Tank (50W) ItemPackageDimensions_Height : 34.5948 centimeters ItemPackageDimensions_Length : 5.6388 centimeters ItemPackageDimensions_Width : 17.23136 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : aquarium-heaters Manufacturer : PULACO ModelName : PL-168 50w for 6-10 gallon tank ModelNumber : 50 Watt for 6-10 gallon tank NumberOfBoxes : 40 PartNumber : PULACO-1 ProductDescription : 50Watts Small Aquarium Betta Heater for 6-10 Gallon Fish tanks ProductSiteLaunchDate : 2023-11-13T08:00:00.000Z Size : 50W SupplierDeclaredDgHzRegulation : other TargetAudienceKeyword : fish UnitCount : 1 UnspscCode : 10111300 Wattage : 50 watt_hours