English Suomi

Light Lab

Photometric Measurements and Calibrations Reliably


SSL Resource Ltd provides photometric measurement services for general lighting fixtures, signal lights, optical materials and detectors in its own photometric laboratory using measurement systems that have been mainly developed in-house. Therefore we can if necessary adapt our facility and service to our customers' requirements. Our measurement facility has been verified with the comparison measurements at Finnish and Netherlands measurement standard laboratories.

Photometric facilities
  • Large 3-axis Goniophotometer, C/B/A type (2pcs)
  • 3-axis Goniophotometer, C type (2pcs)
  • Miniature 2-axis Goniospectrometer
  • Integrating hemisphere spectroradiometer
  • NEMA FL-1 testing system for flashlights
  • Measurement rail for calibrations of detectors
  • AC/DC power supplies
  • Photometers (class L,A, B) 
  • Spectroradiometers, 200-1050nm
  • Imaging luminance camera

Photometric, Radiometric Measurement quantities
  • Luminous intensity (cd)
  • Illuminance (lx)
  • Luminous flux (lm)
  • Luminance (cd/m2)
  • Coefficient of retroreflectance  (cd/m2/lx)
  • Bidirectional reflectance/transmittance factor BRDF/BTDF
  • Correlated color temperature (K)
  • Color rendering index CRI, TM30-20
  • Color coordinates CIE1931, CIE1976
  • (Spectral) radiant flux (mW,W)
  • (Spectral) radiant intensity (mW/sr)
  • Photosynthetic photon flux PPF (umol/s)
  • Photosynthetic photon flux density PPFD (umol/s/m2)
  • Effective luminous intensity (cd)
  • Flicker parameters: SVM, PstLM 
  • ...

Finnish independent measurement laboratory - Advantages to our customers

  • Authenticity - Verified comparison measurements and traceability of certifications (MIKES and NIST)
  • Short delivery times - Single luminaires within 4-5 working days and with the Express service within 24 hours
  • Price - Save even 70% in testing costs
  • Deep knowledge - Wide experience of measurements of different types of luminaires. Solid understanding of lighting technologies enables the utilization of the latest developments in testing.  is also based on manufacturing of photometric testing systems.
  • Customer orientation - We are also manufacturer of photometric testing systems, and our customers comes from more than 10 countries
Attaching plafond on goniometer
Attaching plafond on goniometer

Products can be measured, for example:

  • Down-lights, plafonds, LED-panels, LED strips, LED-tubes, fluorescent tubes, high-bay, low-bay, flood lights, decorative lights, down-up linear luminaires
  • Street lights, bollards, ball luminaires, box luminaires, park luminaires, torches, plant growth lights
  • LED retrofit lamps, fluorescent lamps, energy saving lamps, metal halid lamps, halogens, incandescent lamps
  • Variable message signs, different retroreflectors, Airdfield lights, Automotive headlamps

Services according to following measurement standards

  • EN 13032-1 Measurement of photometric data of lamps and luminaires
  • LM-79-08 Electrical and Photometric Measurements of Solid-State Lighting Products
  • IEC TR 63158 Equipment for general lighting purposes - Objective test method for stroboscopic effects of lighting equipment

  • IEC TR 61547-1 Equipment for general lighting purposes - EMC immunity requirements - Part 1: Objective light flickermeter and voltage fluctuation immunity test method

  • ECE R 65 Measurement of Effective Intensity
  • EN 15153-1:2013 Railway applications: Optical tests of Marker and tail lamps
  • EN 12966-1 Optical tests of Variable message signs
  • IEC 62471: 2006: Photobiological safety of lamps and lamp systems
  • CIE 054.2-2001 and SFS 5908 Retroreflectors
  • CIE 232:2019 Discomfort Caused by Glare from Luminaires with a Non-uniform Source Luminance
  • EN-60598-2-22 Particular requirements - Luminaires for emergency lighting

Photometric reports quickly and reliably from Finland.