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Lighting Expertise

Lighting Expertise


Contrary to what many folks may think, Lighting is not some nebulous subjective condition.  Lighting, or Illumination, can be measured and quantified very accurately.  Just like an engineer can determine the “slipperiness” of a surface by taking friction measurements, an engineer can also measure the illumination of an area.  Detailed illuminance levels are specified in building codes, life safety codes and illuminance standards.  These levels vary depending upon the construction’s function and location.  Stairwells typically require higher levels of illuminance than other areas in a building.  Routes of egress may have very specific standards they must meet.  Some buildings, such as movie theaters, may have exemptions because of how they are used.  Parking lots frequently are not covered by any specific code but there are standards that do apply and should be met.  Measuring average illuminance in an area is often not sufficient.  The overall illumination of an area may meet standards, but there may be points in that area that do not.  Related gradients are also important in lighting design and must be measured – too much light can be a bad thing if the transition from brightly lit to dimly lit is too quick.

Our services include:

  • Lighting Surveys
  • Hazard Assessments
  • Lighting Warnings


Since our first case 30 years ago, CED has been a powerful asset in thousands of investigations into the cause of accidents and product failures. Our success has been driven

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