The plants use a broader light spectrum for photosynthesis, from 400
to 750 nm. Relatively they are less sensitive to green light but more
sensitive to blue and especially red light. The spectrum that aids
photosynthesis is known as PAR light (Photosynthesis Active
Radiation). The intensity of this growth lights is expressed in the
number of light particles or photons that reach a surface per time
The McCree curve shows the sensitivity of plants to light
Special high pressure
sodium lamps are designed to produce the best possible PAR
The 400 V greenhouse lighting systems is the standard now.
Compared with 230 Volt systems, 400V lamps for horticultural purposes
radiated 10% more growing light. It favour to faster growth, better
product quality and fast self-repayment of the lighting installation.
All types of HPS lamps are compatible with our electronic ballasts.