iBrite Portable LED Tooth Whitening Light Unit, 6 - 8 shades of whiter teeth in less than 1 hour. Specially designed for spas and salons, Countdown timer visible to patient, Sleek design Wheelbase unit. Input: AC100V - 240V, 50/60Hz. Blue LED light intensity 120 +/- 10 mW/cm, wavelength 460 - 490 nm. Single unit