savethetunas
Active Member
Hi all, thanks for looking.
I am using one of these 125 watters ( along with other lights etc) and am getting pretty nice results to be honest, however, I can't help but notice a few things about the spectrum and am hoping for some insight.
200 - 280 nm UVC ultraviolet range which is extremely harmful to plants because it is highly toxic.
280 - 315 nm Includes harmful UVB ultraviolet light which causes plants colors to fade.
315 - 380 nm Range of UVA ultraviolet light which is neither harmful nor beneficial to plant growth.
380 - 400 nm Start of visible light spectrum. Process of chlorophyll absorption begins. UV protected plastics ideally block out any light below this range.
400 - 520 nm This range includes violet, blue, and green bands. Peak absorption by chlorophyll occurs, and a strong influence on photosynthesis. (promotes vegetative growth)
520 - 610 nm This range includes the green, yellow, and orange bands and has less absorption by pigments.
610 - 720 nm This is the red band. Large amount of absorption by chlorophyll occurs, and most significant influence on photosynthesis. (promotes flowering and budding)
720 - 1000 nm There is little absorption by chlorophyll here. Flowering and germination is influenced. At the high end of the band is infrared, which is heat.
1000+ nm Totally infrared range. All energy absorbed at this point is converted to heat.
http://www.littlegreenhouse.com/guide3.shtml/accessory/lights.shtml (Source for above)
The attachments are of the spectrum chart on the side of the box that my lights came in. It seems to me that it actually is NOT optimal, and judging just from the colors alone seems to be high in green, though I may be totally wrong and would like a second opinion.
They go in order starting at 3 days from germ, 6 days then today at 10 days from germ ( last two are today).
I am using one of these 125 watters ( along with other lights etc) and am getting pretty nice results to be honest, however, I can't help but notice a few things about the spectrum and am hoping for some insight.
200 - 280 nm UVC ultraviolet range which is extremely harmful to plants because it is highly toxic.
280 - 315 nm Includes harmful UVB ultraviolet light which causes plants colors to fade.
315 - 380 nm Range of UVA ultraviolet light which is neither harmful nor beneficial to plant growth.
380 - 400 nm Start of visible light spectrum. Process of chlorophyll absorption begins. UV protected plastics ideally block out any light below this range.
400 - 520 nm This range includes violet, blue, and green bands. Peak absorption by chlorophyll occurs, and a strong influence on photosynthesis. (promotes vegetative growth)
520 - 610 nm This range includes the green, yellow, and orange bands and has less absorption by pigments.
610 - 720 nm This is the red band. Large amount of absorption by chlorophyll occurs, and most significant influence on photosynthesis. (promotes flowering and budding)
720 - 1000 nm There is little absorption by chlorophyll here. Flowering and germination is influenced. At the high end of the band is infrared, which is heat.
1000+ nm Totally infrared range. All energy absorbed at this point is converted to heat.
http://www.littlegreenhouse.com/guide3.shtml/accessory/lights.shtml (Source for above)
The attachments are of the spectrum chart on the side of the box that my lights came in. It seems to me that it actually is NOT optimal, and judging just from the colors alone seems to be high in green, though I may be totally wrong and would like a second opinion.
They go in order starting at 3 days from germ, 6 days then today at 10 days from germ ( last two are today).