As you are probably already aware, all electronic products go through testing before they can be sold. LED products are no different.
The Illuminating Engineering Society of North America (IENSA) introduced testing standard LM79-08; Electrical and Photometric Measurements of Solid-State Lighting products, to allow an end user to evaluate the suitability of the Solid-State lighting (SSL) system for its use in a particular application or to compare one system to another.
LM79 specifies procedures for measuring total luminous flux, electrical power and luminous efficacy and calls for complete luminaire testing (Absolute Photometry).
This is important for LM79 as although LED’s do not produce UV or Infrared light, they do create heat and the test monitors how efficiently each element of the lighting system can dissipate heat to the next element and eventually away from the system altogether. The better the system is at dissipating the heat, the higher the efficacy, better lumen maintenance and more consistent colour output.
The results of LM79 tests as standard will provide:
- Total Luminous Flux
- Luminous Intensity Distribution
- Electrical Power Characteristics
- Luminous Efficacy (calculated)
- Colour Characteristics (CRI, CCT – more information on these terms can be found by clicking the links)
As LED’s are now the new leader in lighting technology, the need to know which system is best for you is on the rise. LM79 tests help to compare the efficiency of different lighting systems, so you know exactly which of the many is right for you.
For more information or further explanation about LM79 testing, please do not hesitate to contact our sales team on 0845 5330495 and we’ll be happy to help!