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can you grow cannabis with white led lights

Can you grow cannabis with white led lights

6500K LED light is definitely a vegging specialist. If you plan on doing nothing but vegging or cloning, then a cool light like this is ideal.

Let’s take a look at some of the more common color temperatures and see how they compare and when you would want to use them.

And if you add additional red diodes to the mix, you get a light that flowers even better. This is exactly what many of the most popular LED manufacturers are doing these days.

And it makes sense too.

5000k LED For Veg

Using three differently colored LEDs together is obviously not the most efficient way to create white light. For that reason, another method was developed that only uses a single LED.

Since only part of the blue light is converted (as opposed to the whole UV light), this type of diode is much more efficient.

For example, a cool white light, like one with a color temperature of 6500K, contains more blue wavelengths. A warmer white light, like one with a color temperature of 3000K, contains more red wavelengths.

2700k Vs 3000k For Flowering

If you look at the spectrum of a popular white LED grow light, you can see that today’s white LEDs give you a true full spectrum light with output at every wavelength.

Depending on the brand, they add in various additional colors: some add deep red only, some add deep red with infrared and UV, some also add some blue to the mix. Some of them only have a few additional diodes, while others have a lot. Specifically:

Can you grow cannabis with white led lights

White LEDs & COBs

Welcome to Platinum LED’ s new blog where we plan on discussing a variety of key topics on grow lighting, grow tips, and general industry information. For our first entry we will discuss white light LEDs and how they can be used most effectively for growing plants.

There is quite a bit of debate about the Action spectrum and Absorption spectrum when it comes to cannabis development. The Action spectrum is the range of wavelengths of light that are used in the light dependent reactions within plants. The Absorption spectrum is the range of wavelengths of light that are absorbed by green chlorophyll and other chloroplast pigments. The Action spectrum leads us to believe that cannabis plants need more white light, which includes a combination of all the different light wavelengths, but that is not the case. Plants do need green light (510 to 580nm) for different pigments used in photosynthesis, just not in high intensities or in all stages of plant development.

Action spectrum for Cannabis sativa L.

White light is a combination of lights of different wavelengths in the electromagnetic spectrum. White light can differ based on the specific Correlated Color Temperature (CCT) of light that is being produced. Here is an image CCT chart in Kelvin that shows what type of light is produced at different Kelvin temperatures:

There are two types of LED technologies that produce white light that generally used to grow plants, white LEDs and COB (Chips on Board). White LEDs can be found in a variety of different CCT ranges and a most commonly produced by using a blue LED with a phosphor coating that emits yellow light. The blue light emitted from the blue LED hits the phosphor coating, which releases some yellow light. The yellow light mixed in with residual blue light that has not been absorbed by the phosphor makes a shade of white light.

But that doesn’t mean that green light isn’t used in plant development! Accessory pigments such as Carotene and Xanthophyll, aid in the photosynthetic process, and do absorb certain levels of green light, just not in great quantities.