The basic configuration offers one UV and one white light tube -- the advantage of white light or UV illumination from one unit! Use white light when working with materials in a dimly-lit area.
Selected models use two tubes of the same wavelength or the 2UV™ Models use two different wavelengths. The 3UV Model™ available only in the eight-watt lamp gives three wavelengths in one lamp! No other lamp offers this versatility. Easily switch among the three wavelengths (longwave, shortwave, and midrange UV) as your application requires.