IESNA LM-79 (IES LM-79) primarily involves photometric performance testing. Since certain test items require the use of a distributed photometer to complete, most manufacturers are unable to produce a comprehensive report; this test is generally intended for manufacturers of complete lighting fixtures. The main test items include:
IESNA LM-79
The IES LM-79 standard primarily covers photometric performance testing. Since certain test items require the use of a distributed photometer to complete, most manufacturers are unable to produce a comprehensive report; this test is generally intended for manufacturers of complete lighting fixtures. The main test items are as follows:
▪ Total luminous flux
▪ Luminous efficacy
▪ Luminous intensity distribution
▪ Correlated color temperature (CCT)
▪ Color Rendering Index (CRI)
▪ Chromaticity Coordinates (also known as Color Coordinates)
▪ Input AC (or DC) Voltage
▪ Input AC (or DC) Current
▪ Input Power (DC or AC)
▪ Input Voltage Frequency
▪ Power factor
IESNA LM-80
1. Display index.
2. Initial value
3. Luminous flux
4. Luminous flux maintenance rate
5. Luminous decay
6. 3 temperature test points
TM21
Provides methods for processing data measured according to LM80, primarily including the following:
▪ Presents a data fitting method using exponential functions.
▪ Presents a correction method for fitting the lifetime (70% lumen depreciation lifetime).
▪ Provides a detailed method for expressing lifetime.
▪ Provides an interpolation method for calculating lifetime at a given temperature.
ErP Directive Implementation Rules;
Why Choose Arnool Testing
Arnool testing and certification provides enterprises with CCC, CQC, CE, CB, GS, ENEC, ENEC+, CMA, CNAS, and other types of test reports or certification documents.
Arnool testing and certification Experts with over 10 years of industry experience provide professional technical support, training, corrective actions, and guidance to address issues encountered during the testing and certification process.