VENSO Growlight Quattro Double Manuel page 13

General
Many of our plants come from regions of the world where
the circadian rhythm and light levels are different from our
latitudes. An effective light source improves the growing
environment and helps delicate plants survive over the
winter.
The Grow Light Quattro is developed to provide full-
spectrum light, giving a well-balanced mix of wavelengths
to suit most applications. It can be used for germinating
and cultivating plants, to provide additional light, to control
flowering and for overwintering.
Wavelength ranges
The grow light has two switches with which you can switch
between the blue / white and the red wavelength range.
The blue/white wavelengths can be used for cultivating
plants in slightly milder light conditions, or for
overwintering in cool ambient conditions. The mode with
only red wavelengths stimulates flowering. Using full-
spectrum light (all the lights on) gives plants and indoor
trees a growth boost and encourages flowering. This
light mode encourages optimal growth and is ideal for
cultivating plants or growing plants indoors in winter.
Germination
Grow your seedlings in seed compost. Allow the seeds to
germinate without lighting. The germination time is usually
2 to 3 days, but can vary depending on the type of seed.
Once the seed has germinated, you can switch on the
blue/white light. The wavelengths of this light are ideal
for root growth and early plant development. This light is
also milder, which allows seedlings to establish without
drying out.
After the seedlings have grown at least four leaves,
switch on both wavelength ranges (red and blue/white).
This doubles the brightness and accelerates plant growth.
Continue checking regularly that the plants have enough
water. Plants normally consume more water under
LED lighting than other lighting, due to more efficient
photosynthesis.
When the plants are about two months old, they should be
transplanted to a greenhouse or garden plot.
Year-round growing
The Grow Light Quattro is ideal for growing vegetables or
lighting plants all year round. All the wavelengths should
be activated for this mode.
Extra light
The Grow Light Quattro can be used to provide extra
light in a greenhouse with both wavelength ranges
activated. An external timer can be used to set the
grow light so that it switches off during times when
there is plenty of sunlight. Set the timer to increase
the daylight by the desired number of hours.
Flowering control
You can boost flowering by activating only the red
wavelength range. You only need relatively low light
intensity to control flowering, so the light will be sufficient
for about 4 m2. To boost flowering in a greenhouse, for
instance, hang the grow light quite high up, activate only
the red wavelength range and set the light to shine about
4 hrs per day.
Overwintering
For overwintering, use only the blue/white wavelength
range. Plants that can
Mediterranean varieties, citrus plants, palms, olive trees,
bay trees and geraniums. These plants need to overwinter
in cool, bright conditions. Adjust the lighting so that only
the blue/white light is activated. Hang the grow lamp in a
cool place (approx. 10°C and at a height of approx. 2 m. In
this case, the grow light will cover about 2 m2. Use a timer
and set it to approx. 12 hrs per day.
Recomended lighting table
On (hrs)
Flowers
Herbs
Salad
be overwintered include
Off (hrs)
12 12
18 6
16 8
13