Overview
The Feasa Functional LED Analyser is a multichannel tool that tests color and intensity across multiple LEDs in a single test cycle. Fast and reliable, it's trusted by production teams worldwide across automotive, medical, consumer electronics and telecoms, helping manufacturers achieve consistent product quality.
Manufacturing lighting products at scale inevitably introduces variation through assembly processes and material tolerances. The Functional LED Analyser detects these differences quickly and precisely, providing fast, repeatable measurements that keep production lines moving and product quality under control.
Built for straightforward integration, it connects via USB or RS232, supports daisy chaining for larger systems, and includes a comprehensive software suite and SDK – making it an ideal fit for automated production environments.
Built for production. Trusted globally.
Simultaneous multichannel testing
Test 3, 5, 6, 10 or 20 LEDs in parallel in a single capture cycle, reducing test time and increasing production throughput.
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 LED Analyser is commonly used.
Technical Specifications
| Parameter | Value | Notes |
|---|---|---|
| Channels | 3, 5, 6, 10, 20 | Simultaneous measurement |
| Wavelength range | 450–650 nm | |
| Dominant wavelength accuracy | ±2 nm @ 590 nm | |
| CCT accuracy | ±200K @ 2856K | |
| CIE xy accuracy | ±0.01 @ x=0.33, y=0.33 | With OH3 optical head |
| Resolution (chromaticity) | 0.0001 | |
| Repeatability — wavelength | ±1 nm | |
| Repeatability — CCT | ±50K @ 2856K | |
| Repeatability — CIE xy | ±0.0015 | |
| Intensity repeatability | <1% | |
| Supply voltage | 5.0V | |
| Supply current | 220 mA | |
| Dimensions | 104.5 × 54 × 39 mm / 145 × 54 × 39 mm | |
| Fiber length | 0.6 m | Per channel |
| Fiber diameter | 1.00 mm | Plastic optical fiber |
| Min. bend radius | 15 mm | |
| Operating temperature | 0–50°C | |
| Interface | USB, RS232, Daisy Chain, Ext. Trigger | |
| Compliance | CE, RoHS | |
| Model / order codes | 3F · 5F · 6F · 10F · 20F |
Feasa Software Suite

Included with every analyser
- Feasa Terminal — Direct command-line control and diagnostics
- Feasa User Software — Setup, calibration and pass/fail configuration
- Feasa Test Software — Production-line test execution and logging
- Feasa User Cal — User-side calibration management
- DLL/SDK — Programming examples in LabVIEW, C++, Python










