photometric measurements of led products
Best NABL testing House in Noida
Performing photometric measurements of LED products in a lab involves a systematic approach to accurately assess their light output and characteristics.
- Energy Efficiency Evaluation
- Performance Standard Compliance
- Star Rating Certification
Photometric Measurements of LED Products
- • Choose a controlled environment with minimal ambient light to avoid interference.
- • Calibrate all measurement equipment, including spectroradiometers, integrating spheres, goniophotometers, and any necessary accessories.
- • Set up the measurement equipment according to manufacturer guidelines and standards (e.g., IESNA LM-79).
- • Ensure the stability of the equipment, such as temperature stabilization for accurate measurements.
- • Place the LED product in the measurement setup, ensuring it’s securely positioned and aligned properly.
- • If applicable, allow the LED product to reach its operating temperature before starting measurements.
- • Measure the luminous flux (total light output) using an integrating sphere.
- • For luminous intensity, use a goniophotometer to measure the light distribution pattern and intensity in different directions.
- • Use a spectroradiometer to measure the spectral power distribution of the LED light.
- • Calculate color metrics such as color temperature (CCT), color rendering index (CRI), and chromaticity coordinates (x, y or u’, v’) from the spectral data.
- • Position a calibrated illuminance meter at a specific distance from the LED product.
- • Record the illuminance value in lux at various points to assess uniformity.
- • Use a flicker meter or oscilloscope to measure flicker parameters like flicker percentage, flicker index, and modulation depth.
- • Record measurements under different operating conditions and dimming levels, if applicable.
- • Measure the input power using a power meter and calculate efficiency (output power / input power).
- • Calculate efficacy by dividing the luminous flux by the input power (lm/W).
- • If available, use LM-80 data or perform accelerated aging tests to estimate lumen maintenance over time.
- • Use a glare measurement device to quantify glare discomfort, if applicable.
- • Record all measurement data in a structured manner, including product information, test conditions, and results.
- • Analyze the data to ensure it meets industry standards and product specifications.
- • Generate a comprehensive test report detailing all measurements and results.
- • Include relevant specifications, compliance with standards, and any observations or recommendations.
- • Regularly calibrate measurement equipment to maintain accuracy.
- • Perform repeat measurements and compare results to ensure consistency.
PRODUCTS
- • Photometric Measurements of LED Products
STANDARDS
- • IS:16106
TESTS
- • Luminous Efficiency
- • Color Rendering Index (CRI)
- • Color Temperature
- • Color Consistency
- • Color and Stroboscopic Effects
- • Heat Dissipation
- • Lifetime and Reliability
- • Lumen Maintenance
- • Ingress Protection (IP) Rating
- • Dimming Performance
- • Electromagnetic Interference (EMI)
- • Optical Distribution
- • Start-up and Warm-up Time
- • Power Factor and Total Harmonic Distortion (THD)
- • Mechanical Durability
House of Testing is a premier testing laboratory based in Noida, offering a wide range of product testing services. We are accredited by NABL and recognized by BIS, ensuring reliable and high-quality test results.
Email : info@houseoftesting.com
Working days : Monday to Saturday
Working timing : 9:30 AM TO 6:30 PM
FAQs
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House of Testing is a premier testing laboratory based in Noida, offering a wide range of product testing services. We are accredited by NABL and recognized by BIS, ensuring reliable and high-quality test results.
We offer testing services for various categories including electrical and electronic products, household appliances, IT equipment, lighting products, and more, as per Indian and international standards.
Yes, our lab is BIS-recognized, and our reports are accepted for BIS registration and certification processes.
Yes, House of Testing is accredited by NABL, ensuring compliance with ISO/IEC 17025 standards for competence in testing and calibration laboratories.
You can contact our customer support or visit our lab in Noida. We will guide you through the sample submission, documentation, and testing process.
Turnaround time varies depending on the type of product and testing scope, but we strive to deliver test reports in the shortest possible time without compromising quality
We follow both Indian (BIS/ISI) and international standards (IEC, ISO, etc.) based on the client’s requirement or regulatory needs.
We cater to a wide range of industries including:
Consumer electronics
Electrical appliances
Automotive components
Telecom equipment
LED lighting and more
