Magic
Canna Engineer
Hello Family i been doing a little bit of research on led and wavelengths and i found something about blackstars 240 V.2 I have this light and also did a review on it and overall it is a very good light! but what i wanted to point are 2 wavelengths i think you should be aware of with the BS 240 V2 380nm and 730nm.
UV is Broken up into 3 categories A,B,C. A is what you find in Black Lights. B is "dangerous" UV but actually causes plants to produce more THC resin glands as a "sunblock" self defense, it also kills germs. UVC is imo the worst of all 3 and can cause abnormal plant growth,no real positives.
380nm: Falls under UVA light which ismost commonly seen in a black-light. Its primary effect on plant growth comes at a hormonal level. This wavelength will eliminate or limit certain hormones within the plant, effecting the plant’s growth. Over millions of years, plants have created a synergistic relationship with their hormones and UV light. UV-A wavelengths can effect the structural growth in plants due to the hormones it helps to regulate.
730nm: is Infared
The plants use red and infrared light to regulate stem growth and flowering response. Plant cells produce a chemical called a phytochrome, which has two versions. One version, PR, is sensitive to red light (660 nm). Red light converts PR into PFR. PFR signals the plant to grow short stocky stems and also helps the plant grow into specific shapes. The plants also use red and infrared light to measure uninterrupted darkness. As far as plants are concerned in terms of flowering, if there's no red light, it's dark.
PFR is sensitive to infrared light (730 nm), which converts it into PR. When PR levels build to a critical amount, scientists hypothesize that a hormone called floragen becomes active and induces the plant to flower. The reason floragen is called hypothetical is that researchers can see its effects, but they haven't found it yet.
PFR reverts to PR naturally. For PFR to be present, it must be renewed continuously by the presence of red light. When plants are shaded, they get less of the needed red light. In the absence of red light, the PR version predominates and the stem stretches to reach the light. Lower side branches shaded by leaves from above have PR and grow longer until they reach the light. Then they modify their growth in the presence of PFR.
Outdoors during the day, there is more red light than infrared. However, at dawn and dusk the first and last light from the sun isn't the visible red of the rising or setting sun, but infrared, which is at the far end of the electromagnetic spectrum. The infrared converts the PFR to PR and the critical dark-time begins or ends its countdown.
This has too many implications for them all to be discussed here. For instance, it explains why plants grown under incandescent lamps stretch (more infrared than red light). The effects of the two spectrums can also be used in innovative indoor lighting programs
Theoretically this light is suposed to
effect(stop/shape) growth(380nm) and promote flowering(730nm)
i feel this is strictly a flowering led. i had plants grow full cycle under this baby and they dont do as well in veg as my GN M0006. But flowering that is a different story my plants seem to mature a lot faster then my GN even thought my plants turn out bigger under the GN. i will be using my GN and small ufo led for veg and wont kick on the BS 240 V2 until flowering starts so i can get the most growth out of them as possible. i recommend you look up your led spectrum and see how it effects growth of a plant it could be the difference and how well you plants turn out!
UV Chart
100-200 nm: Vacuum UV
200-280 nm: Germicidal UV (UV-C)
280-315 nm: Dangerous UV (UV-B)
315-400 nm: Black Light UV (UV-A)
UV is Broken up into 3 categories A,B,C. A is what you find in Black Lights. B is "dangerous" UV but actually causes plants to produce more THC resin glands as a "sunblock" self defense, it also kills germs. UVC is imo the worst of all 3 and can cause abnormal plant growth,no real positives.
380nm: Falls under UVA light which ismost commonly seen in a black-light. Its primary effect on plant growth comes at a hormonal level. This wavelength will eliminate or limit certain hormones within the plant, effecting the plant’s growth. Over millions of years, plants have created a synergistic relationship with their hormones and UV light. UV-A wavelengths can effect the structural growth in plants due to the hormones it helps to regulate.
730nm: is Infared
The plants use red and infrared light to regulate stem growth and flowering response. Plant cells produce a chemical called a phytochrome, which has two versions. One version, PR, is sensitive to red light (660 nm). Red light converts PR into PFR. PFR signals the plant to grow short stocky stems and also helps the plant grow into specific shapes. The plants also use red and infrared light to measure uninterrupted darkness. As far as plants are concerned in terms of flowering, if there's no red light, it's dark.
PFR is sensitive to infrared light (730 nm), which converts it into PR. When PR levels build to a critical amount, scientists hypothesize that a hormone called floragen becomes active and induces the plant to flower. The reason floragen is called hypothetical is that researchers can see its effects, but they haven't found it yet.
PFR reverts to PR naturally. For PFR to be present, it must be renewed continuously by the presence of red light. When plants are shaded, they get less of the needed red light. In the absence of red light, the PR version predominates and the stem stretches to reach the light. Lower side branches shaded by leaves from above have PR and grow longer until they reach the light. Then they modify their growth in the presence of PFR.
Outdoors during the day, there is more red light than infrared. However, at dawn and dusk the first and last light from the sun isn't the visible red of the rising or setting sun, but infrared, which is at the far end of the electromagnetic spectrum. The infrared converts the PFR to PR and the critical dark-time begins or ends its countdown.
This has too many implications for them all to be discussed here. For instance, it explains why plants grown under incandescent lamps stretch (more infrared than red light). The effects of the two spectrums can also be used in innovative indoor lighting programs
Theoretically this light is suposed to
effect(stop/shape) growth(380nm) and promote flowering(730nm)
i feel this is strictly a flowering led. i had plants grow full cycle under this baby and they dont do as well in veg as my GN M0006. But flowering that is a different story my plants seem to mature a lot faster then my GN even thought my plants turn out bigger under the GN. i will be using my GN and small ufo led for veg and wont kick on the BS 240 V2 until flowering starts so i can get the most growth out of them as possible. i recommend you look up your led spectrum and see how it effects growth of a plant it could be the difference and how well you plants turn out!
UV Chart
100-200 nm: Vacuum UV
200-280 nm: Germicidal UV (UV-C)
280-315 nm: Dangerous UV (UV-B)
315-400 nm: Black Light UV (UV-A)
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