LPCE-3 is a CCD Spectroradiometer Integrating Sphere Compact System for LED Testing. It is suitable for single LED and LED luminaires’ photometric, colorimetric and electrical measurement. The measured data meets the requirements of CIE 177, CIE84,  CIE-13.3, COMMISSION DELEGATED REGULATION (EU) 2019/2015, IES LM-79-19, Optical-Engineering-49-3-033602, IESNA LM-63-2, ANSI-C78.377 and GB standards

The Sphere System Configuration: 
CCD Spectroradiometer (LMS-7000), Optical Fiber (CFO-1.5M), Digital Power Meter (LS2008R), DC Power Source (DC-S Series), AC Power Source (LSP-500VAS), Integrating Sphere (IS-1.5MA-CASE and IS-0.3M), Standard Light Source (SLS-50W and SLS-10W)

Measurement:
• Colorimetric: Chromaticity coordinates, CCT, Color Ratio, Peak Wavelength, Half Bandwidth, Dominant Wavelength, Color Purity, CRI (Ra, R1 to R15), Spectrum Test, TM30 (Rf, Rg), CQS
• Photometric: Luminous Flux, Luminous Efficiency, Radiant Power, EEI, PAR, PPF
• Electrical: Voltage, Current, Power, Power Factor, Harmonic (Optional)

Specification:
• Spectral Range Wavelength: 350nm~950nm(LMS-7000VIS) (200~1050nm is optional)
• Spectral Wavelength Accuracy: ±0.5nm  Wavelength Reproducibility: ±0.5nm
• Sample Scanning Steps: ±0.1nm
• Accuracy of Chromaticity Coordinate (Δx, Δy): ±0.003 (under Standard A Lamp)
• Correlated Color Temperature CCT: 1,500K~25,000K. CCT Accuracy: ±0.5%
• Color Rendering Index Range: 0~100.0, Accuracy: ± (0.3%rd±0.3)
• Photometric linear: ±0.5%
• Stray light: <0.015% (600nm) and <0.03% (435nm)
• The system includes the auxiliary lamp device and the software includes self-absorption function
• Connect with PC via USB cable. The English version software can run in Win7, Win8 and Win10, Win11 (The driver was Certificated by Microsoft)

An integrating sphere is frequently used to examine luminaire or light source brightness, chromaticity coordinates, CCT, dominant wavelength, peak wavelength, etc. The traditional integrating sphere is the IS-*M, which LISUN has already stopped manufacturing in favor of the IS-*MA, which uses a molding method. It is your finest choice to take into consideration if your application calls for the measurement of a beam that is widely divergent.

Lumen is a unit of measurement for the total amount of visible light emitted by a light source. It is an important parameter in lighting design and evaluation, as it reflects the brightness and effectiveness of a lighting system. To accurately measure lumen output, a spectroradiometer system with an integrating sphere is commonly used. In this technical article, we will discuss how to test lumen by integrating sphere spectroradiometer system.