The STEGO CR027 is a compact PTC technology fan heater. Properly applied it will maintain minimum operating temperatures in enclosures eliminating the harmful effects of corrosion caused by condensation. The PTC element adjusts heating power to the ambient temperature. The heater is available in four ratings, 400 and 550W in 230VAC and 550 and 650W in 120VAC. This product is CE, UL Recognized and RoHS compliant.