IES light distribution curve

IES light distribution curve

“IES FILES” A standardized data file which expresses the light output of a luminaire as luminous intensity versus angle along with sufficient descriptive and documentary test information it is derived from the acronym for the Illuminating Engineering Society of North America (IESNA). IES files are assigned the file extension ".ies". Used by lighting designers to model the illumination performance of a lighting scheme using commercial lighting design programs. An IES file is commonly referred to as "photometric data" for a luminaire.

Customers are issued a complete test report along with the resulting IES file for use in most application and modeling programs.

Test equipment: photometric distribution meter (remote vertical equipment)
Test content: product performance, no qualified and unqualified.

Standard Tests Include:
Candlepower
Luminous flux
Lamp/Luminaire efficacy (Lumens per Watt)
Color rendering index (CRI)
Correlated color temperature (CCT)
Spectral distribution measurements
Chromaticity coordinates
Luminance measurements
Luminous intensity distributions
Reflection and transmission measurements

Single model / single color temperature / single power test,
after the test is completed, there are 4 files.

Actual test time: 30 minutes or so
Time to report to customers: 1-5 work days
The largest testable lamp size of our equipment: ≤1.6 meters, ≤20Kg
Test standard: IES-LM-79-08
Cost: 800-1200 CNY / model / color temperature / power