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Photometer SSL L-50

Ideal for measuring temporal light measurements and LightTester


SSL L-50 Photocurrent meter is USB (BT) photometer for measuring light flicker and illuminance. It is used as light detector in flicker, goniophotometer's BPC and LightTester measurement systems.


  • Transimpedance amplifier (TIA)
  • Measurement quantities:
  • Illuminance Ev (lx),
  • Optical flicker frequency (Hz), Flicker index, Percent flicker (%), Duty cycle (%), EV,MEAN, EV-max, EV-min, Flicker risk (IEEE 1789)
  • New flicker parameters SVM (IEC TR 63158) and Pst LM (IEC TR 61547-1)
  • Effective Intensity and pulse width
  • Photocurrent measurement range:
  • 5 nA - 30 mA
  • Signal bandwidth:
  • Max: 15 kHz @ photocurrent > 100 nA
  • 4kHz @ 5-100nA (SVM requirement > 2kHz)
  • Sampling rate
  • Maximum: 100 kHz
  • SVM: 36 kHz (1s measuring time)
  • P_st^LM : 2 kHz (1-5min)
  • Linearity <0.1%
  • Data communication: RS-232, USB, BT (option: L-50.BT)
  • USB powered by PC or external 5V battery
  • Package includes:
  • SSL L-50: L-50, RS-232 cable (1.8m), USB A-B cable (1.8m), 5V power supply
  • SSL L-50.BT: L-50.BT, RS-232 cable (1.8m), USB A-B cable (1.8m), 5V power supply, external 5V battery
  • Compatible with SSL measuring heads of type LH and UVH: (for more information, see a link below to the measuring head catalogue) 
  • Options:
  • Luminance head (different field of view options in the range of 1.4°-16°)
  • Stray-light tube (different field of view options in the range of 25°-60°)

Light Temporal Analyzer

Photometric experts at your service.