What is the best light for growing? 2022 Updated
When growing outdoors you can harness the power of the sun, but in an indoor environment, sunlight is mimicked through the use of grow light bulbs, which aim to display the same spectrum of light as the sun.
Grow lights allow you to control exactly how much light your plants receive, ensuring they get the same amount of light day after day, without the grower having to solve problems with bad weather or cloudy days that happen in an outdoor environment.
Some grow lights are more expensive than others, but also more efficient, saving money in the long run. Some lights are bulky with many parts, some light in weight, and some are better suited for young or mature plants.
Lighting Terms That you Should Know
Light Spectrum
Regular (photoperiod) cannabis plants require different spectrums of light to produce flowers. Blue spectrum light is needed during the vegetative stage, while red spectrum light is needed to transition to the flowering stage. However, if you start with autoflowering plants, you will not need to change the lighting to start the flowering stage, so the light spectrum is less of a concern.
Wattage
Wattage refers to a light’s power rating. Pay attention to this number because it has a bearing on how many lights you will need. For example, if you have a smaller grow space, one light with high wattage may be enough. However, if the lighting you choose has low wattage, you will need additional lights to provide the proper coverage.
Wattage also helps determine how far away you should keep your plants. Generally speaking, higher wattage lights need to be positioned further away from your plants because they can burn them. LED lights are an exception to this rule because they give off surprisingly less heat when compared to the other types of lighting with the same wattage.
Lumens
Lumens is a measure of how much light a given light source emits during each second the light is on. Like the light spectrum, lumens are more relevant for photoperiod plants. “Regular” cannabis plants require varying amounts of lumens during the different stages of growth. For example, they need between 2,500 and 5,000 lumens per square foot in the vegetative phase, but it jumps to 10,000 lumens per square foot during the flowering phase.
That is why it is a good idea to assess the lumen measurement when considering lights for growing weed. Cannabis plants need lights that provide enough lumens intensity for their proper growth.
Kelvins
Kelvins refer to the warmth and color of the light being emitted. During the vegetative stage, cannabis thrives best when provided cool daytime blue light with approximately 6,400 kelvins. Conversely, flowering cannabis performs best with a warmer red light of 2,700 kelvins.
As you can see, picking the best lights for growing weed is more than simply selecting the priciest model available. Especially if you are growing photoperiod plants, you should think about how many plants you are growing, where you will be growing them, and how much energy you can afford to spend.
Best Color Spectrum For Cannabis
spectrum for cannabis plantsWhat is the best color spectrum to use when growing cannabis? Or, does this even exist?
There is no ‘one ring to rule them all’ with the color spectrum. All colors are needed, but some a lot more than others.
Cannabis plants respond well to both blue light and yellow/red light. Blue light is at the lower end of the spectrum and we see it as very bright and direct lighting. Yellow/red light is much warmer in our eyes.
Let’s take a step outside into the world of outdoor cannabis growing for a second, and take a look at the spectrum of the sun throughout the year.
Blue Light For Cannabis Vegetative Stage
The blue light will be most prominent during the summer months as the sun is high and very bright in the sky. Your cannabis plants will grow stronger while using grow lights with higher ratio of blue light.
Blue ranges from 400–500 nm, the ideal value would be 460 nm.
Red Light For Flowering Stage And Better Yields
The warmer light is seen later in the year when the sun drops lower in the sky and isn’t as bright. A cannabis plant notices this as a sign to start flowering, therefor grow lights with higher amounts of red are best for flowering stage.
Red ranges from 620 to 780 nm, with the ideal being 660 nm.
Best light for growing weed 2022
ECO Farm MB3 Pro 760W LED Grow Light
$640 and FREE SHIPPING to US for this ECO Farm new light, 27% OFF and shipped from US within 24 hours, it is a best choice for high power indoor growers.
ECO Farm ECOZ 700W LED Grow Light
27% off for this light, ECOZ 700 is under $700 and FREE SHIPPING to US, it has 3 channels, VEG and Bloom spectrum, also has UV and IR, best for every stage of your indoor plants.
BENEFITS OF UV
Increases resin production
Improves taste and smell
Causes more branching and less stretching
Increases root mass
BENEFITS OF FAR-RED
Increases plant biomass
Triggers flowering
Enhances flower size
Improves efficiency of overall spectrum