Indoor LED Lighting Design


The LED lighting revolution is already here. More and more indoor lighting projects are implementing controllable LED lighting, which guarantees a significant savings in both electricity and maintenance expenses. Along with new installations of LED lighting, retrofit projects are executed as well.

When planning indoor LED lighting projects several important considerations are to be examined such as functionality, energy savings and maintenance costs.

Functionality- Regardless of the type of light source, the lighting system's main role is to provide artificial lighting to the user according to the needs and specifications.

Predefined lighting parameters are necessary in order to plan the lighting system:

  • Direct/Indirect illumination.
  • Required illumination levels - Measured in lux.
  • Light color temperature (CCT) - Specified in Kelvin degrees. As the color temperature increases, the light will appear "whiter". Using LED with a "whiter" color temperature will be more energy efficient, but the blue light content will be higher (consider “blue light hazard”).
  • Colour Rendering Index (CRI) - The higher the CRI, the more that colors appear to look “natural”. In LED lighting the red color content is usually very low and needs a special effort to properly show this color range.
  • Glare - In order to reduce glare levels, large number of lower power LEDs will be preferred over a few high power LEDs, especially in a low installations. Adding a diffuser to the LED fixtures will also help in reducing glare.


Additional aspects and tips will be published soon.