GL SPECTIS 1.0 is a practical handheld measuring device that’s ideal for LED testing and measurement. Its high sensitivity and accuracy make it a perfect solution for light source quality control.

Analytik are exclusive UK & Ireland suppliers of GL Optic’s handheld and laboratory-based spectroradiometers and related products, for precise light measurement and LED testing.

We will be happy to work together with you on a solution with the full support of the GL Optic team, based in Germany. Visit our contact page, request a quote, or call us on +44 (0)1954 232 776.



GL SPECTIS 1.0 is a practical and reliable handheld device specifically designed for the measurement and characterisation of light sources – especially LEDs – providing accurate spectral information and colour coordinates conforming to CIE standards.

GL SPECTIS 1.0 is small in size with low energy consumption delivering high sensitivity and precise calibration performance based on a particularly low noise floor. The device is powered and operational when connected to a PC via a USB port.

Key Features:

  • High sensitivity and precise calibration
  • Low noise and stable measurements
  • Ready to work when connected to PC
  • Small size and low energy consumption
  • Powered via USB connection

The following values are automatically calculated using GL Optic’s SPECTROSOFT software:

  • Tristimulus values XYZ
  • Chromaticity coordinates xy, uv, u’v’
  • Correlated colour temperature CCT (Kelvin)
  • Dominant wavelength (nm)
  • Colour rendering CRI (Ra)
  • Peak wavelength (nm)
  • FWHM spectral linewidth

GL SPECTROSOFT is a PC-based software, designed for laboratory application as well as for field work in production quality control and for general light assessment purposes. Key features include:

  • Intuitive and easy to use
  • Absolute or relative measurements
  • Flexible data presentation
  • Helpful tools for easy analysis and interpretation of measured spectra

The following measurements are performed with the use of additional optical probes:

  • Illuminance (lux)
  • Spectral irradiance (µW/m2/nm)
  • Luminous flux (lumens)
  • Spectral radiant flux (W/nm)
  • Luminous intensity (candelas)
  • Luminance, 2D & spot (candelas per sq. Meter)

Technical Specifications:

Spectral Range 340-750 nm / 640-1100 nm
Detector CMOS image sensor with slit
Number of pixels 256
Physical resolution ~ 1.7 nm / ~ 1.8 nm
Wavelength reproducibility ± 0.5 nm
Integration time 5 ms to 100 s
A/D conversion 16 bits
Signal to noise ratio 1000:1
Stray light 2*10E-3
Optical FWHM 12 nm
Spectroradiometric accuracy ± 4%
Measurement uncertainty of colour coordinates (x,y) ± 0.0015
Connector for optical fiber SMA905D
PC interface USB 2.0 standard
Power consumption USB current consumption < 100mA
Ambient temperature 5-35 °C
Dimensions 62 x 115 x 19/30 mm
Weight 90 g

Request a quote for GL Optic SPECTIS 1.0 or call us on +44(0)1954 232 776.


  • Different light source measurements:
    halogens, fluorescent lampsGL SPECTIS 1.0 with GL OPTI SPHERE 48
  • LED measurement and testing compliant with CIE 127
  • Flat screen display measurement



LED Light Measurement Made Easy


PDF Icon GL Optic SPECTIS 1.0 Datasheet

PDF Icon GL Optic SPECTIS 1.0 ISO 3664 Assessment

PDF Icon GL Optic Product Overview

News & User Stories

PDF Icon Analytik report on PEI Genesis’ work with the GL Optic SPECTIS 1.0 for high precision light assessment

PDF Icon Analytik report on Astro Lighting’s use of the GL Optic Mini-Spectrometer and 1.1 metre sphere

PDF Icon Analytik announces the Mini-Spectrometer for the quality control of LEDs as part of a new relationship with GL Optic

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