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.
Built for backlit panels. Trusted globally.
Designed for low-light testing
Test backlit buttons and other low-output LEDs where sensitive, repeatable measurement is essential.
Comprehensive output parameters
Outputs include Hue, Saturation, Intensity, Dominant Wavelength, CCT, CIE xy and CIE u'v'.
Complete software package
The full Feasa Software Suite is included as standard, with DLL and programming examples for LabVIEW, C, C++, C# and Python.
Built for production integration
USB and RS232 interfaces are standard, with up to 30 analysers daisy chained from a single port.
Proven in production
- Millions of LEDs tested every day using Feasa products
- Worldwide usage on production lines by leading manufacturers
Direct engineering support
From fixture integration and setup to troubleshooting, our technical team supports you throughout deployment.
Applications
Where our Low Light Analyser is commonly used.
Technical Specifications
| Parameter | Value | Notes |
|---|---|---|
| Channels | 3, 5, 6, 10 | Simultaneous measurement |
| CIE xy accuracy | ±0.01 @ x=0.33, y=0.33 | Immediately after calibration |
| Repeatability — CIE xy | ±0.002 | |
| Intensity repeatability | <1% | |
| Luminance range | <0.5 to <1,000,000 cd/m² | |
| Supply voltage | 5V | |
| Supply current | 220 mA | |
| Dimensions | 105 × 55 × 50 mm / 145 × 55 × 50 mm | |
| Fiber length | 0.6 m | Per channel |
| Fiber diameter | 2.2 mm core | |
| Min. bend radius | 35 mm | |
| Operating temperature | 0–50°C | |
| Interface | USB, RS232, Daisy Chain, Ext. Trigger | |
| Compliance | CE, RoHS | |
| Model / order codes | 3A · 5A · 6A · 10A |
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
