Integrating Sphere for Lumen: High Precision Spectroradiometer & Integrating Sphere System for Testing Energy-Saving Lamps, Fluorescent Lamps, HID Lamps, and LEDs

The demand for high-quality lighting solutions has led to a significant focus on testing and standardizing various light sources, including energy-saving lamps, fluorescent lamps, high-intensity discharge (HID) lamps such as high-pressure sodium and mercury lamps, cold cathode fluorescent lamps, and LEDs. To ensure compliance with international standards such as CIE 177, CIE-13.3, CIE-84, ANSI-C78.377, GB/T 24824, IESNA-LM-63-2, Optical-Engineering-49-3-033602, (EU) 2019/2015, LM-80, and LM-79, the LISUN LPCE-2 (LMS-9000C) High Precision Spectroradiometer Integrating Sphere System emerges as a critical tool. This system accurately evaluates the photometric, colorimetric, and electrical parameters of light sources, making it indispensable for quality control and R&D.

Overview of the LISUN LPCE-2 (LMS-9000C) System
The LISUN LPCE-2 system combines a high-precision spectroradiometer with an integrating sphere to deliver comprehensive testing capabilities. The spectroradiometer provides precise spectral data, while the integrating sphere ensures uniform light collection, enabling accurate lumen measurements. This system is designed for:
• Energy-Saving Lamps
• Fluorescent Lamps
• HID Lamps (e.g., high-pressure sodium and mercury lamps)
•  Cold Cathode Fluorescent Lamps
•  LEDs

Key Features
• Compliance with Standards: Meets LM-79, LM-80, and other international photometric and colorimetric standards.
• Wide Measurement Range: Measures parameters such as total luminous flux, correlated color temperature (CCT), color rendering index (CRI), and spectral power distribution (SPD).
• Advanced Data Processing: Provides data visualization and analysis, ensuring results align with industry requirements.

Applications and Testing Parameters
LED Quality Assessment
LEDs are evaluated based on their photometric, colorimetric, and electrical parameters. The LISUN LPCE-2 system measures:
• Luminous Flux (lm): Total light output.
• CCT (K): The appearance of light color.
• CRI: Quality of light in rendering colors accurately.
• Electrical Characteristics: Voltage, current, and power.

Testing of Energy-Saving Lamps
The system assesses the performance of energy-saving lamps by measuring their luminous efficiency, spectrum, and color characteristics. These measurements ensure compliance with standards like (EU) 2019/2015.

HID Lamp Analysis
High-pressure sodium and mercury lamps require precise SPD measurement to ensure their performance in outdoor and industrial applications. The LISUN LPCE-2 system provides detailed spectral analysis to validate their efficiency and quality.

Fluorescent Lamp Testing
Fluorescent lamps, including cold cathode variants, are evaluated for lumen output, color uniformity, and energy efficiency. The system ensures that these lamps meet the requirements of CIE-13.3 and other relevant standards.
Compliance with International Standards

The LISUN LPCE-2 system’s compliance with multiple international standards ensures its reliability and applicability across diverse testing scenarios:

Standard	Description
CIE 177	Provides guidelines for photometric and colorimetric measurements.
CIE-13.3	Specifies methods for measuring CRI.
CIE-84	Covers measurement of luminous intensity.
ANSI-C78.377	Establishes specifications for chromaticity of LEDs.
GB/T 24824	Chinese standard for photometric and colorimetric measurements.
IESNA-LM-63-2	Defines procedures for photometric testing of light sources.
Optical-Engineering-49-3	Discusses methodologies for optical engineering in lighting systems.
(EU) 2019/2015	European regulations on energy labeling of lighting products.
LM-80	Specifies testing of lumen maintenance for LED light sources.
LM-79	Describes electrical and photometric measurements of LED products.

Experimental Setup and Data Analysis
The LISUN LPCE-2 system consists of:
• Integrating Sphere: A 1.5m or 2.0m diameter sphere that ensures isotropic light distribution for accurate total luminous flux measurement.
• Spectroradiometer: High precision equipment capable of measuring from 380 nm to 780 nm.
• Auxiliary Lamp: Corrects self-absorption errors caused by different light sources.

Sample Data Analysis
LED Test Results

Parameter	Value
Luminous Flux	800 lm
CCT	4000 K
CRI	85
Voltage	220 V
Current	0.35 A
Power	15 W

Fluorescent Lamp Test Results

Parameter	Value
Luminous Flux	1200 lm
CCT	6500 K
CRI	90
Voltage	110 V
Current	0.45 A
Power	20 W

Advantages of the LISUN LPCE-2 System
• Accuracy: High-precision measurements ensure reliable results.
• Versatility: Supports various lamp types, including LEDs and HID lamps.
• User-Friendly Software: Intuitive interface simplifies data analysis and report generation.
• Energy Efficiency Evaluation: Helps manufacturers optimize light source efficiency.

Conclusion
The LISUN LPCE-2 (LMS-9000C) High Precision Spectroradiometer Integrating Sphere System provides a comprehensive solution for testing energy-saving lamps, fluorescent lamps, HID lamps, and LEDs. By ensuring compliance with international standards, this system supports manufacturers in delivering high-quality lighting products. Its advanced features and precise measurements make it an essential tool in the lighting industry.

Tags：LPCE-2 (LMS-9000)