Overview
Absolute measurement is essential wherever consistent, traceable LED quality is a production requirement. The Feasa LED Spectrometer was developed specifically for LED manufacturing, providing the reference standard for accurate color and intensity measurement.
Unlike many laboratory spectrometers, it is designed around the practical requirements of LED production, enabling manufacturers to create traceable reference measurements and calibrate production equipment with confidence.
Combining laboratory-grade accuracy with production-ready operation, it provides the traceable reference measurements used to calibrate Feasa LED Analysers and maintain consistent manufacturing quality.
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Applications
Where our LED Spectrometer is commonly used.
Production Calibration
Golden Reference Board Generation
RGB LEDs
RGB LED Calibration
Laboratory
LED Characterisation and Binning
Production
Production Line Verification
Technical Specifications
| Parameter | Value | Notes |
|---|---|---|
| Spectral range | 380–780 nm | Full visible spectrum |
| Min wavelength step | 0.1 nm | High resolution |
| Integration time | 10 µs to 4 s | Automatic exposure control |
| CIE xy chromaticity accuracy | ±0.005 | After calibration with integrating sphere |
| Power accuracy (Watts) | 10% | After calibration |
| Luminous Flux accuracy | 10% | After calibration |
| Peak wavelength accuracy | ±1 nm | |
| Wavelength repeatability | ±0.5 nm | Excellent consistency |
| Chromaticity xy repeatability | ±0.0005 | Precision measurement |
| Intensity repeatability | < 1% | |
| Interface | USB 2.0, RS232, Daisy Chain, Ext. Trigger | Flexible connectivity |
| Supply current (USB) | 180 mA | USB bus powered |
| Dimensions | 125 × 54 × 32 mm | Including brackets |
| Fiber diameter | 5.1 mm incl. cladding | Armoured fibre |
| Operating temperature | 0–40°C | Narrower than most Feasa analysers |
| Special functions | PWM, Sequence Capture (450), Ext. Trigger | |
| Integrating Sphere adapters | SP13, SP23, SP16, SP26 | Luminous Flux (Lumens) |
| Luminous Intensity adapters | CD02, CD04, CD08 | Candela — CIE Condition B |
| Luminance adapters | LU01, LU02, LU04, LU07 | cd/m² — automotive displays |
| Adapter patch cord | FP02 (600mm, FC-PC to SMA) | Used by all adapters |
| Compliance | CE, RoHS | EU standards |
| Model number | Feasa S2 |
Feasa Spectrometer Software Suite
Included — Windows 11 / 10 / 8 / 7 / Vista / XP
- Graphical Display Program — Real-time full spectrum display and CIE xy chromaticity diagram
- Datalogging and compare — Log measurements over time, compare against stored references
- Terminal & Scripting Program — Command-line control with CSV export
- Feasa Spectrometer Software — Calibration workflow, golden board generation, Analyser value transfer
- Test Software and User Cal — Also included with every unit
- DLL/SDK — Programming examples in LabVIEW, C++, Python
Downloads and Resources
Spectrometer Datasheet
User Manual
Software Package
ZIP
Download