polyarcturus
Well-Known Member
super long but once again well written.
Advanced Lighting Spectrums for T5 Floro and LED
- Thread starter Fonzarelli
- Start date
Fonzarelli
Active Member
That's what she said
PetFlora
Well-Known Member
Fonzarelli
Active Member
Definitely looks crazy. I would rather sink my money into a product with fewer wires though. That beast has like 10,000 little leds on it. Lots to go wrong I guess. Looks like a 3-D lite-brite. LOL Or something you would see on a merry-go-round in a carnival.
It's kinda cool that it's cylindrical in shape though. Would be a nice light to drop in between the canopy maybe.
Fonzarelli
Active Member
For you Poly
10K
4pm Afternoon Sunlight
11am Midday Sunlight
10K
4pm Afternoon Sunlight
11am Midday Sunlight
Fonzarelli
Active Member
Notice the red color shift of the sunlight later in the afternoon as the sun is lower in the sky. This is due to the sunlight having to travel through more of the Earth's atmosphere.
The Midday Sunlight does not have to travel through as much atmosphere thus creating more of a blue shifted spectrum.
I really like the afternoon sun spectrum. All of my outdoor plants on the Southern side of my house are almost 5 times larger than the plants on the Eastern side of my house. Now I know why. The plants on the Southern side of my house get all of the late afternoon sunlight. Even though they get less light overall, the spectrum is ideal.
Also take note that there is more UVb light coming from my 10K MH lamp than the sun........crazy huh? Guess I'd better start wearing my shades in my grow room more often, my eyes are not happy.
The Midday Sunlight does not have to travel through as much atmosphere thus creating more of a blue shifted spectrum.
I really like the afternoon sun spectrum. All of my outdoor plants on the Southern side of my house are almost 5 times larger than the plants on the Eastern side of my house. Now I know why. The plants on the Southern side of my house get all of the late afternoon sunlight. Even though they get less light overall, the spectrum is ideal.
Also take note that there is more UVb light coming from my 10K MH lamp than the sun........crazy huh? Guess I'd better start wearing my shades in my grow room more often, my eyes are not happy.
polyarcturus
Well-Known Member
was the 10k mh bare bulb or behind glass?
what wattage? the goal is to cover a large area with a small watt bulb, personally thats a good bump but id like to see 2x that.
wonder what an reptile MVB (bare bulb) would put out on your machine? the 160w covers a 2x4 area pretty well
r
what wattage? the goal is to cover a large area with a small watt bulb, personally thats a good bump but id like to see 2x that.
wonder what an reptile MVB (bare bulb) would put out on your machine? the 160w covers a 2x4 area pretty well
r
polyarcturus
Well-Known Member
this is why i run 11 hours hps and 8 hours MH to try and recreate this cycle. it has shortened my flowering times immensely, and stomata are more readily open.
Fonzarelli
Active Member
Also, keep in mind, the range of my device goes from 350nm to 750nm. There may be additional peaks that I am not aware of.
polyarcturus
Well-Known Member
ahhh damn im looking fot the 280 peaks
between 275 and 350 is al the magic. ive been looking into a UVB meter but its out of my range right now since i will net the whole set (UVC UVB UVA meters) to find safe source of UVB, i did not realize it did not go that low.
between 275 and 350 is al the magic. ive been looking into a UVB meter but its out of my range right now since i will net the whole set (UVC UVB UVA meters) to find safe source of UVB, i did not realize it did not go that low.
Fonzarelli
Active Member
The 10K lamp I use is a regular mogul lamp. So the element part of it is within another layer of glass. Then, I have the mogul lamp inside of a sunsystem reflector which has it's own layer of 1/8" thick glass. Plenty of UVb light still gets through all of the glass anyway.
Fonzarelli
Active Member
I don't think it's necessary. Really, UVb light is not good for plants or for people. It has been noted that ALL blue light does pretty much the same things as UVb. I don't mean to burst your bubble, but any 10k lamp is going to emit enough of what you are looking for.
But, let me know what you find out with the 280nm, I'm sure it will create some major thick trichome.
Fonzarelli
Active Member
It's all good. I am mainly studying the visible light spectrum and how it influences plant growth.
You can get a spectrometer that only does the UV light spectrum. They go all the way from 200nm up to 420nm. I think they are still around $2000 though.
My opinion is that you are getting a little carried away with the whole UVb idea. Hey, I could be wrong(hope I am for you sake). But many people have told me that any deep blue light will create the same trichome production that you are seeking.
I would like to see what you are after though. If you are right about needing that deep of UVb light, it may change the way people look at LEDs. There is no LED to this day that emits light lower than 365nm, so it would be impossible to re-create your spectrum using an LED.
BTW, thank you for the rep.
polyarcturus
Well-Known Member
trust me i will let everyone know! its something ive been chasing for a while ive tried even playing it off as if im a reptile enthusiast but have got nowhere yet.
maybe blue does have the same effects essentially but im a purist i want my garden to have a true full spectrum i personally thing in the right balance UVB is good for all organisms. overuse of anything, even red or blue lights, can have bad results.
maybe blue does have the same effects essentially but im a purist i want my garden to have a true full spectrum i personally thing in the right balance UVB is good for all organisms. overuse of anything, even red or blue lights, can have bad results.
polyarcturus
Well-Known Member
well im a ways from that. but ill look around at it didnt know that existed i had always thought they only had meters, thus the lack of graphs that map UV. and that most where approximations
Fonzarelli
Active Member
Well, you did see that the sun spectrum drops off beyond 400nm right? I highly doubt there are any major spikes beyond 400nm. The atmosphere blocks them all pretty well.
polyarcturus
Well-Known Member
white power funny lol ^^^
polyarcturus
Well-Known Member
spike are about as major as the last bump its not much as far as strength goes but its still causes a reaction got to keep in mind those bumps might be small but they still cause sunburn.