Diameter: 36mmMin. temp: 20 degreesMax. temp: 32 degreesPerformance at 50 Hz: 100 WattFor aquariums of about.: 100LFor aquariums up to approx.: 150LHeight: 309mmFreshwater: YesSeawater: YesAdvantages of the EHEIM control heater thermocontrol-ePrecise temperature adjustment from 20 to 32 °CNo readjus..