Light Spectrum Control Platform
100% customization of the LED lighting
A modern-day farmer is capable of creating a unique environment to meet specific demands of any types of grown crops.

A dynamic control system can modify lighting parameters (wavelength range is especially important) to alter plant physiology to achieve results such as delayed flowering, an increase in biomass, accelerated photosynthesis, and many other interesting signaling responses of plants.

With the OverGrower automation complex, you may ensure a direct spectral regulation to simulate seasons, growth cycles, and photobiological responses.

Multi-channel Control System
with Dynamic Spectrum and Brightness Control

At OverGrower, we use the spectrum control technology to choose the best composition of light spectrum irradiated by grow lights, which fits growing conditions of your crop.

Lamps contain many LEDs of various colors.
Each LED may glow brighter or dimmer due to LED regulated power consumption option.

LEDs on similar colors with regulation option are called Lamp Control Channel.
Each channel within the multi-channel lamp is regulated by dimming function.

The Light Spectrum Control Platform may easily integrate any standard commercial multi-channel lamps, as well as it may be implemented into any individual projects under the OverGrower Customization.
SPECTRO-01OG Spectrum Control Module may dim up to 6 grow light channels simultaneously.

With two and more control modules connected to one OverGrower device, you will have an opportunity to control the spectrum of one or several lamps with any number of control channels at a time!

Available for buying:
- OverGrower advanced growing automation
- SPECTRO-01OG Spectrum Control Module
- LuxaVita multi-spectrum grow lights
to implement programmable lighting into completely controllable environment.
With full-fledged dynamic control of the light spectral composition!

Lighting Customization

A dynamic control system can modify lighting parameters to alter plant physiology to achieve results such as delayed flowering, increased biomass, accelerated photosynthesis, and many other interesting signaling responses of plants.

Create a unique environment to meet specific demands of any types of grown crops!

You may facilitate a direct spectral regulation to simulate seasons, growth cycles, and photobiological responses!

demonstration of work

Optimum Spectrum Parameters to be Considered

Day Light Integral (DLI)
Type of crops
Growth stage
Time of day

Growing specifications to be changed
with the dynamic spectrum

Some growth stages, such as flowering, may be started or delayed through lighting regulation by spectrum and duration
In order to collect more yield, one may extend the fruiting time for some crops at growing stage
Growth speed
By applying specific lighting cycles and parameters, one may increase ripening and growing speed, which is used for accelerated selection
Compactability (density)
Lighting spectrum regulation at vegetation stage provides for an increased growth of new leafs, thus improving compactability and density of plants
Root development
Under a specific spectral composition of the light, a plant enhances its roots development at initial stages of its growth.
With various compositions, you may establish conditions for such enhanced roots development at any stage of plant growth
Plant health
Lighting directly effects the plant health as light is not only an energy resource, but also a signaling regulator.
Lighting spectrum regulation also provides for a stimulation of internal processes within plants, effects their immune system, and suppresses pathogens activity


What do plants need?
For plants, light is the source of both energy and information.

Light is the source of energy for photosynthesis — a process though which we get oxygen that we breath.
Light is also a source of information that causes physical changes in plants (photomorphogenesis).

For a better growth, plants need to be subject to a dynamic light within a specific wavelength range.
Widespread grow lights do not provide all required properties of light needed to plants.

Even though plants may and do survive with ever narrower light spectrum range, their lifecycle and growth are not optimal in such conditions.
Plant growth and development may be optimized by varying light spectrums for specific type of crops and current plant development stage.

For crops at growing stage, light intensity and spectral composition are meaningful factors only if the plant is in need of that very specific type of light at a specific moment.

Nevertheless, optimal lighting conditions may be defined not only by the plant, but also by the needs of the plant grower.
Based on scientific data, one may define the light intensity and spectral composition required for optimal plant growth.

An ongoing control of intensity values provided for defining a photosynthetic saturation point for the plant, which ensures ultimate photosynthesis efficiency and plant growth without any additional energy wasted.

When plants reach the saturation point,
any additional radiation will be useless
and may even do harm

The information on wavelength rages — discovered and studied by the scientists — gives only an approximate description of a huge variety of ways to use the light spectrum to influence plants.
Ultraviolet Light, 10-400 nm
Prevents plant infestation
Used to sanitize surfaces.
Recommended for sprouting.
Blue light 400-520 nm
enhances photosynthesis
Leafs growth.
Increased leafs thickness.
Synthesis of carotenoid and chlorophyll A and B.
Green light 500-600 nm, affects leafs color change
Increased biomass.
Lower leafs affected.
Leaf stem and stalk growth.
Red light 630-660 nm, activates flowering and fruiting
Seeds grow and form.
Flowering and fruiting.
Enhanced chlorophyll synthesis.
Infrared light 720-740 nm
facilitates mitosis
Earlier flowering.
Light penetrates into lower parts of the canopy.
Better flowering and fruiting.

Leafs of land-grown plans mostly consume red and blue lights on their first level of photosynthesizing cells, due to consumption by chlorophyll.

Green light, however, reaches deeper into the leaf and may enhance photosynthesis in a more efficient way compared to the red light.

As green and yellow waves may penetrate chlorophyll and the leaf as such, they are vital for growth under the canopy.

Photosynthetic Active Radiation

Effective Light Culture
The wavelength range in visible light spectrum of 380 - 780 nm required for plants is called the Photosynthetic Active Radiation (PAR).
It is a type of light used by plant for photosynthesis and development.

The most widespread growth pigment is chlorophyll, as it is involved in photosynthesis and the most efficient in consuming blue and red lights.
Therefore, the largest part of green light remains unconsumed and is reflected from plants, which colors them in green.

Plants, however, have other pigments called accessory pigments, which include carotenes and xanthophyll.
These accessory pigments are capable of consuming green light as well.

Leaving behind any simplified belief that plants only require blue and red lights, we also know that green, yellow lights and all other wave lengths in combination outside the PAR range are also beneficial for plants.

Notwithstanding the fact that UV light can damage plant cells by changing their DNA, the research also showed that UV exposure may foster plant health by activating protective mechanisms.

Similar to that, some synergy happening between wavelengths — that used to be considered useless for plants — may enhance photosynthesis.
For instance, it was proven that long-wave irradiation, exceeding 700 nm (far-red light), in combination with short-wave irradiation (blue light) deep inside the canopy may stimulate photosynthesis.


Photosynthetic Photo-Flow (PPF) is the most accurate indicator of the photosynthesis. With PPF, one may compare different sources of light intended for plant growing in a more objective way.

However, it gives no information about how much light irradiated by the source a plant will receive for photosynthesis.
Light concentration and PAR are variable, just as the Photosynthetic Photons Flow Density (PPFD), which is a quantitative rating of photons received at the surface for a specific period of time (µmol/sq.m./s).

PPFD shows light intensity required for optimal plant growth and development..
It is an important value as photosynthesis is a quantum process, where 8-12 photons are deemed necessary for adhering one CO2 molecule and releasing one O2 molecule.


As these factors depend on seasons, time of day, and lighting duration, the DLI is used to assess the quantity of natural sunlight that may potentially be used by the plant.

DLI is useful for approximate evaluation of quantified values of irradiation required by the plant
There is a moment when the plant reached the light saturation point, after which there is no use of further lighting. This point is called the light saturation point, and it varies not only among different types of crop, but also among different breeds and specific genetic lines.

Experienced plant growers thoroughly define the exact DLI value to ensure maximum growth potential for each group of plants, thus eliminating an excessive radiation in order to escape negative effects for the plants, as well as to safe energy and lamps durability.

Plants fully uncover their genetic potential when they gent optimal quantity of ligh

The scientific research and application of the DLI on practice showed that efficient use of lighting provides for more than 30% of energy saving
Knowing the optimal DLI for the plant, one may set up the lighting in such a way as to maximize the growth speed and yield for each individual plant

Influence on Plants

DLI affects many properties of plants; especially it limits growth and functioning of some crops.

Changing the DLI during the vegetation and comparing it with outcomes may help researchers to define what crops will flourish in what areas.

Leaf anatomy: light directly affects the leaf thickness, quantity and size of cells, density, and stomato quantity.

Leaf physiology: even though chlorophyll concentration decreases under intensive light, plants grow more leafs per unit of foliage area, which results in relatively constant value of chlorophyll.
This leads to an increased light reflection on the leaf area, and decreased light transmission.
One unit of foliage area contains more photosynthetic ferments, thus photosynthesis accelerates due to light saturation.
However, if we re-calculate this to a dry unit weight of a leaf, the total photosynthetic ability will decrease.

Leafs chemical composition: excessive lighting does not affect nitrogen amounts, but decreases chlorophyll and minerals concentration.
It also enhances concentration of starch and sugars, soluble phenolic agents, as well as xanthophyll/chlorophyll and chlorophyll A and B ratios.

Plants growth: when subjected to excessive lighting, plants generate less biomass into leafs and stems, while generating more on their roots.
Plants grow faster as per the unit of foliage area and per the total plant weight; therefore, plants grown under excessive lighting usually have less biomass.
They develop shorter internodes, larger stem biomass per stem length, but the height often remains unaffected.
Plants grown under excessive lighting are characterized by more branches and cuttings.

Plans reproduction: plants grown under excessive lighting usually have larger seeds and produce substantially more flowers.
A significant increase in seed production is also mentioned.
For city farming, strong plants with short internodes and a large number of flowers are most important, thus, the optimal DLI is required to harvest merchandisable garden plants.


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