Thermol Ionic Ceramic Straightening Iron Size 1 inch - Creates a shiny, smooth finish, revitalizes and renews hairs shine. Generates far infrared heat to protect hairs luster. Up to 230 degrees salon temperature, rheostat temperature dial, 200 watts. Ceramic pulse instant heat, slim 24mm plate size. 230 degrees C /446 degrees F. An ion is a charged molecule, which can be either positive or negative. When hair becomes entirely charged by static electricity, positive electrical charges, the hair cuticles open, causing frizz and a dull apppearance. The negatively charged molecules generated by the Babyliss Pro thermal ionic iron smooth and relax the hair by canceling static electricity.