Northern California - Small Rooftop Grow

[gianca]

does anyone know what the power of the sun is in lumens? just curious to how similar or different in power a HID light is to the sun. anyone have any knowledge on this?

[Weezard]

does anyone know what the power of the sun is in lumens? just curious to how similar or different in power a HID light is to the sun. anyone have any knowledge on this?

Just stepped out on the lanai with my CT-1330-B light meter.
Bright, overcast 3:00 pm sun in Hawaii measures 10,950 LUX
To get that reading from my LED panels I hold the meter 6" away.
Of course sunlight has yellow green which we see quite well and the meter is weighted towards human eye response. I expect you'd get a higher lux reading from the same wattage of green LEDS
So , I keep the LEDs about 8" from the plants.

That answer your question?

Anybody care to repeat this with an HPS and an MH?

Consternation turned to elucidation!
Weezard

[dooobster]

I looked it up on Wiki.
It says that "Bright sunlight provides illumination of approximately 100,000 candella per square meter at the Earth's surface." It then goes on to state "a uniform 1 candela source emits 12.6 lumens."
So, if I do the math... 100,000 X 12.6 = 1,260,000.
One million, two hundred sixty thousand lumens per square meter.
Hmmmmmmmmmmmmmmmm.....

[Weezard]

I looked it up on Wiki.
It says that "Bright sunlight provides illumination of approximately 100,000 candella per square meter at the Earth's surface." It then goes on to state "a uniform 1 candela source emits 12.6 lumens."
So, if I do the math... 100,000 X 12.6 = 1,260,000.
One million, two hundred sixty thousand lumens per square meter.
Hmmmmmmmmmmmmmmmm.....

So that's what? 140,000 lumens per square foot?
Tell ya what, next time I get a break in the clouds around noon I'll see what this meter calls it.
Though translating to any spectrum other than sunlight is difficult.
Hmmmmmmm, indeed.

(Edit) Sun came out!
At 4:13 pm HST I read 65,000 Lux.
I'll get another read some future noon.

Mahalo,
Weezard

[Earthy Dank]

I heard it was like 2000 watts od HPS per Sq meter. Which is insane but makes sense cause outdoor plants are beasts. Gianca whats kind of fertilizer are you using?

[gianca]

I heard it was like 2000 watts od HPS per Sq meter. Which is insane but makes sense cause outdoor plants are beasts. Gianca whats kind of fertilizer are you using?

hey Earthy!

i'm feeding them General Hydroponics FLORA nutrients. the ones in the ground went without additional soil, and the ones in posts are in an unknown type of soil.

gianca
:rastasmoke::weedpoke:rastasmoke::weedpoke:

[gianca]

i just got back from watering them about 10 minutes ago, and when i got down there to the biggest one, a bunch of branches were all tangled up. i untangled them, and none were broken. i then noticed a branch hanging much lower than usual. i dont think it was caused by weight, because it isnt that heavy yet, but it is not broken either. a little confused, what could be doing this? a small animal like a raccoon or skunk? but how would the tangling of the branches be explained? anyone know?

[gianca]

small picture update

pictures as follows:

picture 1- smallest of the grape ape x northern lights. was topped by deer, and sprouted 3 main stems.

picture 2- another GAxNL, a few weeks behind the biggest one.

picture 3-5: the biggest plant, growing nicely, fattening up the buds :hippy::hippy:


enjoy,
gianca
:rastasmoke::weedpoke::rastasmoke::weedpoke:

[inbud]

I do enjoy your pictures and thank you for posting them. I really like that you share them with us. :hippy:

[gianca]

thanks inbud! i love taking pictures of them, and the help people can give on this site is wayyy better than anything you can read in a book, so its a win-win situation :hippy::hippy:

but there wont be any picture updates for an entire week, because the camera has been taken to south america by a member of the family. i can always take pictures of them using a much lesser quality camera, but i feel it doesn't do justice to the flowers. we'll see what happens.

i wasn't able to get any last shots before the camera was packed up, but the buds are really putting on some weight now! the buds under the main cola are now a little bit bigger than golf balls, and dense! the plant doesn't smell if you just put your nose up to it, but if you touch a bud, than smell your fingers, it smells very strong. very much like a berry smell, that reminds me of fruit loops cereal. i'm guessing the smell usually alters as the plant matures, right?

thanks to everyone who has been helping out with my grow, and even people that just lurk around watching the plants grow, your more than welcome to keep lurking

gianca
:rastasmoke::weedpoke:rastasmoke::weedpoke: