STEP Systems
STEP Systems News
October 2017

Grow Light

driving force for plant growth
Измерение освещенности
Why measure light
As the driving force for photosynthesis, light is fundamentally important for crop production. Plant growth and development is significantly influenced by both the quantity and the quality of light.

How is light perceived
Lux meters measure light similar to how the human eye perceives brightness: strongest in the 500-600 nm range. For plants, however, the light that can be used for photosynthesis (PAR / Quantum Light) is in the spectral range from 400 to 700 nm. At that different wavelengths help plants achieve different goals as well.

How light impacts plant development
  • Ultraviolet Light (380-410 nm): can support mineral metabolism and formation of vitamin D in plants; also useful for killing insects.
  • Blue light (wavelength 440 - 460 nm): stimulates the plant growth on stems and leaves; helps to avoid excessive growth.
  • Red Light (630-660 nm): stimulates the root growth, chlorophyll biosynthesis and carbohydrate accumulation; provides better germination, blooming and fruiting.
  • Infrared Light (730 nm): speeds up the phytochrome conversion which reduces the time a plant takes to go into a night time state. This allows the plant to produce a greater yield
Grow light measurement
Please see various instruments for the plant light measurement below or in our STEP Systems catalogue.
The light meter is a measuring instrument for the precise measuring of the illuminance and the incidence of light on a particular area.
  • Small and easy to use
  • Large LCD Display
  • HOLD-button for highest and actual measuring value
ФАР / Квантометр
PAR- or Quantum meter measures the total amount of light which can be used by plants for photosynthesis.
  • Selectable light sources: electric or solar
  • Integrated sensor
  • Wavelength range 400-700 nm
The Lighting spectrometer PRO Standard is used in combination with a smartphone or tablett for measurement of different lighting parameters.
  • Integrated flicker meter
  • Graphical indication of the measurement results
  • Data is available immediately after measurement and can be sent by e-mail or WLAN
STEP Systems GmbH
Duisburger Str. 44
90451 Nuremberg
Tel.: (49-911) 96 26 05 0
Fax: (49-911) 96 26 05 9
👉 Stay tuned for more useful information about our measurement technology
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