#AMBERLIGHT EXPERIMENTAL DRIVERS#In fact, they’re the primary drivers of photosynthesis. It’s well-documented that blue and red light are well-absorbed by plants and strongly drive photosynthesis. White LEDs are more efficient than ever, allowing growers to reap the benefits of full-spectrum light while maintaining efficiency.Īnother reason for green light’s exclusion from blue-red fixtures is a misinterpretation of laboratory studies. In the design of early LED fixtures, the constraints of LED technology influenced manufacturers’ beliefs about the“ideal spectrum.” So rather than designing a fixture based on the spectrum of the sun, they designed a spectrum based on the capabilities of LEDs. Blue- and red-emitting diodes produce more photons per input of electricity than other diodes. One reason for the popularity of blue-red LED fixtures is efficiency. However, such a sharp departure from the natural spectrum of sunlight doesn’t yield the best results for cannabis. The design philosophy behind blue-red fixtures asserts that a heavily tuned “purple” spectrum is better for several reasons, as noted below. Those fixtures exclude the middle wavelengths from the spectrum and rely on blue and red LEDs alone, creating an unnatural “purple” light. Many fixtures on the market favor a blue-red spectrum. It’s important to note that although some manufacturers reference green light, they’re typically referring to the white LEDs within the lamp. So, instead of green LEDs, lighting engineers use “white” LEDs that produce green light and other wavelengths simultaneously. White LEDs, on the other hand, efficiently deliver green light and fill out other parts of the light spectrum too. Due to the constraints of manufacturing technology, green LEDs lack the electrical efficiency of other colors of LEDs. While green LEDs are useful for research, they’re not practical for commercial cultivation. These green wavebands fill the gap between blue and red light in the visible light spectrum, and when combined with amber light, green creates full-spectrum, “white” light.īut you won’t find green LED fixtures on the market or see green LEDs contained within a full-spectrum fixture. Greenlight can be defined as light with a peak wavelength between 500 and 600 nanometers (nm). In this blog, we explore how green light affects cannabis and other plants, and how you can select lighting to maximize your growth. Moreover, our human eyes sense green light more easily than other colors not that much is reflected. But the reality is not so simple, and only a small portion of green light is reflected to give plants their green appearance. The myth that plants don’t use green light stems from their green color: if the plants are reflecting green, they’re not using it. While many growers believe cannabis plants don’t utilize green light for photosynthesis, they actually do, and green light is important for other processes as well. Greenlight is subject to the most misconceptions. That newfound control of the lighting spectrum lets us know how plants respond to light, and it debunks some long-standing myths about the best light for cannabis. Unlike the high-intensity discharge (HID) lamps of old, LEDs allow us to easily isolate single wavebands of light photons - otherwise known as colors of light. Light-emitting diodes (LEDs) have triggered a groundswell of horticultural research over the past ten years.
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