Lighting Technologies & Controls: Services

 

3- The Light Source: Efficient Choices

Generally the energy efficiency of the lighting source can be calculated precisely by knowing how much energy is fed to it, compared to how much lighting flux it gives out.

The Figure below shows the different stages of energy losses, which are resulted from:

  • low efficient technology of the gear,

  • low efficient technology of the lamp and

  • low efficient technology in the fixture (luminaire) design.

diagram illustrate how to choose an efficeint lighting source