GTI is a leading manufacturer of D50 lighting systems. Products include desktop systems, pressroom viewing stations, floor models and large-format systems. All products conform to the ISO 3664 standard. GTI’s D50 LED lamp offers a CRI that is greater than 98 and the closest match to the D50 spectral specifications ensuring tight conformance to the ISO 3664 standard. It also offers all the benefits of LED technology including energy efficiency, instant on/off, longer life and being more environmentally friendly.