The new adjustable heater from Oase. Features include a patented control system which enables precise readjustment of the temperature (+/-3 degrees celcius). This robust heater is perfect for submerged use with a light to show you when it is working. It allows easy installation with a holder included. Dimensions: 2.3 x 20.5cm Power consumption: 25 Watts Power cable length: 1.5 metres Guarantee: 3 Years Suitable for use in freshwater and saltwater aquariums.