The SCHEGO Titanium heater is shatterproof and absolutely sea-water resistant. Titanium delivers the warmth substantially better to the water than conventional glass heating staffs. For the professional application in the fresh and sea water aquarium. The heating staff is grounded and corresponds to the high VDE standard. The SCHEGO Titanium heater can be placed in any position under water, also fully submersed.technical Data SCHEGO Titanium heater:Length of the models 50 W to 300 W: 250 mmLength of the 600 W model: 350 mmDiameter: 25 mmCable length: 1,5 melectrical connection: 230 V 50 Hz (other voltages on request)The heater is unregulated it is recommended to use the SCHEGO Controller TR 1000