200W UL Linear LED Grow Light with 0-10V Dimming Driver

200W UL Linear led grow light with 0-10V dimming driverSpecificationPower:200WVoltage:AC100-277VLeds:SMD 2835PF>0.98ColorNatural light and red lightPPF:277.59umol/SSystem efficacy2.15umol/JDriverInventronics dimmable driver
Size
How do plants use different light spectrums
Blue light (430nm-450nm)
This range of spectrum enables cryptochromes and phototropins to mediate plant responses such as phototropic curvature, inhibition of elongation growth, chloroplast movement, stomatal opening and seedling growth regulation. It affects chlorophyll formation, photosynthesis processes, and through the cryptochrome and phytochrome system, raises the photomorphogenetic response.
In more practical terms, these wavelengths encourage vegetative growth and are essential in lighting for seedlings and young plants during the vegetative stage of their growth cycle, especially when "stretching" must be reduced or eliminated. It also stimulates the production of secondary pigments which can enhance colors and is known to also stimulate Terpene (i.e. fragrance) production.
Green light (500nm-550nm)
Most green light is reflected off the plant and plays a much smaller role in plant growth. However, there are some important aspects of light in this range so a certain amount of light in this spectrum range is beneficial. Green light is sometimes used as a tool for eliciting specific plant responses such as stomatal control, phototropism, photomorphogenic growth and environmental signaling. When combined with blue, red and far-red wavelengths, green light completes a comprehensive spectral treatment for understanding plant physiological activity. The function of green light is less well understood than the other spectrums, and there are only certain species of plants that require green light for normal growth. It's effects appear to be very strain specific.
The pigments that can absorb green are found deeper in the leaf structure so it is thought that because green light reflects off of the Chlorophyll in leaf surfaces and thus is reflected deeper into the shaded areas of the canopy than Red and Blue which are readily absorbed, that green may actually be mostly absorbed through the undersides of the leaves as it bounces around in the shaded depths of the canopy.
Red light (640nm-680nm)
Red light affects phytochrome reversibility and is the most important for flowering and fruiting regulation. These wavelengths encourage stem growth, flowering and fruit production, and chlorophyll production.
The 660nm wavelength has a very strong photosynthetic action and also exhibits the highest action on red-absorbing phytochrome regulated germination, flowering and other processes. Most effective for light cycle extension or night interruption to induce flowering of long-day plants or to prevent flowering of short-day plants.
Far red (730nm)
Although the 730nm wavelength is outside the photosynthetically active range, it has the strongest action on the far-red absorbing form of phytochrome, converting it back to the red-absorbing form. It becomes necessary for plants requiring relatively low values of the phytochrome photoequilibrium to flower. Can be used at the end of each light cycle to promote flowering in short-day plants such as Canniabis.
Growth stages of Canniabis:
There are also generally 4 growth stages in canniabis that have different spectrum requirements.
Vegetation- In Vegetation (VEG) stage, rapid, healthy overall plant and root growth is desired, and in general most growers desire maximum growth but with shorter compact plants with short inter-nodal spacing preferred
Pre-flower- Pre-flower is the period from when the 12/12 flower cycle is first initiated, to roughly the end of the second week (in an 8-week flower), or until the small flowers are prevalent and the rapid growth stretch slows. Again, for most growers, the desire in this stage is to maximize SIZE, while limiting stretch.
Flower- The peak Flower period is generally from week 3-7 and is the time when the plant (stem / leaf) growth stops and all the plant energy focuses on flower production.Maximum flower matter size and good structure is generally the goal here.
Ripen or Finish- The Ripen period is generally from week 7 to finish (in an 8-week flower) where the Flower growth, (i.e. size) slows and plant energy refocuses on resin and terpene production. This is the period where the flower acquires a significant portion of it's density, ie. resin content. This transition is not clearly defined, and some strains have big increases in resin production during this period, and others not as much.There's no "set" distance LED lights
should be from the tops of your plants, but a good rule of thumb is 12-18+ inches.(30.44~45.67cm)
Each model is different based on the size of its bulbs and the lenses used to reflect light down. It's important to ask the manufacturer how far to keep LEDs from your plants. Smaller LEDs with 1W chips almost always need to be kept at least 12" away. However, most LEDs with 3W chips or bigger need to be kept 18" away or more to get the best results and prevent light burn. Check with the manufacturer to figure out the right distance for your particular model of LED grow light
If just the tops of your plants are showing symptoms, chances are that your LED lights are too close.Products and teams