Overview
Automotive manufacturers use LED backlit switches and panels to create a safe, appealing cockpit—nearly invisible by day and clearly legible at night. Because these assemblies often come from different suppliers, maintaining consistent color and brightness is essential.
The Feasa Low Light LED Analyser is purpose-built for these applications, accurately measuring light after it has passed through etched or painted plastic panels where other testers may struggle.
Its high sensitivity delivers fast, repeatable color and intensity measurements across multiple channels, helping manufacturers maintain a consistent appearance across every vehicle interior.
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Applications
Where our Low Light Analyser is commonly used.
Technical Specifications
| Parameter | Value | Notes |
|---|---|---|
| Channels | 3, 5, 6, 10 | Simultaneous measurement |
| Minimum luminance | < 0.5 cd/m² | High sensitivity |
| Maximum luminance | < 1,000,000 cd/m² | Wide dynamic range |
| CIE xy accuracy | ±0.01 @ x=0.33, y=0.33 | Immediately after calibration |
| CIE xy repeatability | ±0.002 | Precision measurement |
| Intensity repeatability | < 1% | Excellent consistency |
| Parameters tested | Intensity, Homogeneity, xy, DW, CCT | Full colour characterisation |
| Supply voltage | 5V | USB bus powered |
| Supply current | 80 mA | Low power consumption |
| Interface | USB, RS232, Daisy Chain | Up to 30 units per port |
| Dimensions (3–6 ch) | 104.5 × 54 × 41 mm | Excl. fibre bend radius |
| Dimensions (10 ch) | 145 × 54 × 41 mm | Confirm with engineering |
| Fiber length | 0.6 m | Per channel |
| Fiber diameter | 2.2 mm OD, 1.5 mm core | Large aperture for low light |
| Min. bend radius | 30 mm | |
| Operating temperature | 0–50°C | Industrial range |
| Compatible optical heads | OH-12, OH-13, OH-14, OH-34, OH-36 | Available on request — confirm with Feasa |
| Compliance | CE, RoHS | EU standards |
| Model numbers | 3A · 5A · 6A · 10A | Channel variants |
Feasa Software Suite

GUI, DLL, LabVIEW and C/C++ — included with every analyser
- GUI — Graphical interface for setup, results display and pass/fail configuration
- Command line interface — Sample CLI for scripted production test integration
- C and C++ examples — Application examples for custom test station integration
- DLL and LabVIEW — Support for NI platform and automated test systems
- Connectivity — USB and RS232 communication — Daisy Chain for multi-unit scaling
- Calibration workflow — Calibrate using a known good reference part or Feasa LED Spectrometer
Downloads and Resources
Product Datasheet
User Manual
Software & SDK
ZIP
Download





