What is an LED? -- LED stands for light emitting diode, which is a semiconductor device that emits visible light whenelectrical current passes through it.
How can I view an IES file? -- IES files contain luminous intensity data and angular information which is typically presented as polar diagrams and cone diagrams. Neither of these diagrams is included in the file format itself, but can be generated from the files by using lighting analysis and design programs such as Photometrics Pro, Photometric Toolbox, Relux or Dialux. A free viewer can also be downloaded from www.photometricviewer.com
How does LED make the world a better place and a more beautiful place? -- LED has changed the way the world sees light. Inefficient, old-style incandescents and CFLs are being phased out by a lighting technology that can deliver warm, traditional light or a cooler, more contemporary white light, all while using a fraction of the energy and with virtually zero environmental damage.