LM-79 Testing
Introduction :
LM-79 Testing – LED Performance Evaluation
What is LM-79 Testing ?
LM-79 is a standardized testing method established by the Illuminating Engineering Society (IES) to measure the performance characteristics of LED luminaires, lamps, and modules. It provides accurate data on luminous flux (light output), efficacy, colour characteristics, and distribution.
LM-79 testing is essential for manufacturers, distributors, and regulatory bodies to ensure LED products meet industry standards for performance and energy efficiency.
Why is LM-79 Testing Important :
✅ Ensures accurate LED performance data.
✅ Required for BIS, BEE Star Rating, and DLC (Design Lights Consortium) certifications.
✅ Helps manufacturers comply with energy efficiency regulations.
✅ Builds consumer trust by verifying product claims.
Key Parameters Measured in LM-79 Testing :
🔹 Luminous Flux (Lumens) – Total light output of the LED luminaire.
🔹 Luminous Efficacy (lm/W) – Efficiency of light output per unit power.
🔹 Correlated Color Temperature (CCT) – Color appearance of the light (e.g., warm white, cool white).
🔹 Color Rendering Index (CRI) – Light quality and accuracy in color reproduction.
🔹 Spectral Power Distribution (SPD) – Distribution of light across different wavelengths.
🔹 Luminous Intensity Distribution – Light spread and beam angles.
LM-79 Testing Process :
1) Sample Submission –
The LED luminaire is submitted to an NABL-accredited laboratory for testing.
2) Testing Setup –
The sample is placed in an Integrating Sphere or Goniophotometer under controlled conditions.
3) Measurements & Data Collection –
Parameters like luminous flux, efficacy, and color metrics are recorded.
4) Report Generation –
The detailed LM-79 test report is provided, required for certifications and regulatory approvals.
Who needs LM-79 Testing :
✔ LED Manufacturers – To verify product performance and comply with standards.
✔ Importers & Distributors – To meet global market requirements.
✔ Government & Regulatory Bodies – To ensure compliance with energy efficiency programs.
✔ Retailers & Buyers – To evaluate product quality before purchase.
Get your LM-79 Test Today :
We provide accurate, reliable, and fast LM-79 testing services through NABL-accredited laboratories.
