Things to Know About Lighting

Speaking about fixtures and how the light reacts a "deep" fixture with the lamp recessed way up in the fixture tends to concentrate the light downward dispersing it very little.These types are great for vegging I've found when the plants arent as "branchy" and spread out.On the other end of the spectrum a "shallow" fixture tends to disperse the light more,that is why I like the vertizontal for flowering

Oneton said:

he's right he, dont know anything. 1x 1000w hps does 10x10

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This statement is extremely false, borderline retarded.

Let us assume our 1000w bulb is producing 120,000 lumens (a generalization of the intensity of the light) at a distance of 7 inches. At 14 inches away the lumen level is cut by 4 due to the inverse square law (same amount of energy spread across a larger area). At 21 inches it is cut by 9. At 28 inches it is cut by 16, and at 35 inches it is cut by 25. A 10x10 area would have the plants on the edges a minimum of 5 feet from the light source. Given that the bulb needs to be suspended several feet above the canopy we're talking a good 8 feet from the bulb to the edge. That's 96 inches, or about 1/188 of the available power for a grand total of about 650 lumens... 1/4 of what is required for photosynthesis.

The ideal canopy size for a 1000w is 4 feet by 4 feet. You can push it to 5x5, but realize you're adding another 9 square feet, or more than 50% of the space, which is going to translate into a lower concentration of the available energy.

http://www.purplemountainorganics.com/Glow_Panel45_LED.html
Check out these led's compare to 250w hps

I just started using this plasma grow light from stray light and its fucking awesome. I bought it off of confidentiallightingsolutions.com

GrowGod303 said:

I just started using this plasma grow light from stray light and its fucking awesome. I bought it off of confidentiallightingsolutions.com

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thats too much bux for a light holly shit 1300 hhu

bet it pays itself off pretty quick though

Yeah, $1300 is a bit much. I've seen them as low as $1,150... but still. Fuck that. Not when that money could get four 1000w systems setup.

When they come down into the $500 to $600 range is when I'd consider picking one up. At that price the life span and energy savings that make it more economical would be incentive enough to get one.

A person can build a 70w themselves for about $400 from plasma television/projector parts, good for an area 1.5 feet cubed. Google DIY plasma lighting for some info.

testing something this reply is nothing

ok i got my info from reading "Indoor mariguana horticulture" by jorge cervantes
upon revisiting the book it does say, "growers with a 10"x10" area using a 1000w halide may add a 1000w hps during flowering".
i didnt just make it up

imo t5 for veg..600w hps for flower

dammmmnnnn my bulb popped, thank gd i had a spare lol. is a 150w sodium good for sprouts, space is about 1 x 1 about 30cm from tops?

Alright spank the newb later... hypothetically, wouldn't 4 - 90w ufo's out perform 1 - 400 hid? I know its more expensive for the lights. But if a big concern is energy consumption and heat, wouldnt this be superior?? I have one, but soon will be needing more light and convincing the old lady that 2000 watts of light wont attract attention is not really working. I would also need a air conditioner (hanging out the window) and that wont fly. plus it eats power too.

Am I just gonna end up with a bigger yield of so-so nugs? I think less, but better pot is my goal overall, if I had too choose.

Has anybody had ANY luck with LED's? I can put that light like 4" from the plant with no ill effects. wouldn't 4 led's on a 4x4 sea of green out perform 1 400 hid? maybe with supplemental white light, like a couple cfl's?? I would still be running less power and cooler. Socal summers are crazy hot. I would have to include the price of cooling too. It just seems like a better option. Unless the nug just isnt what it could be. I mean, that IS why we're doin all this, right?

I also want to try LED light but I don't want to be wasting money on it later on. Is it really cost-effective? How about the grows, are the results way better than those grown under HID lights? I hope someone here can share his experience in using LED lights. Thanks

We have been getting many new users lately who don't seem to know the finer points of our rules.

sameenashaheen said:

We have been getting many new users lately who don't seem to know the finer points of our rules.

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did I miss something??

sameenashaheen said:

We have been getting many new users lately who don't seem to know the finer points of our rules.

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Says the person with one post, off topic, in a thread about lighting...

C'mon, that's just sad.

I'm unsub'd for sure.

is it cause i'm stoned?? what just happened??

will one hps 400 watt light work for just growing a couple plants at a time?

yeah it is humorous...lol but i ALWAYS say...ya can never stop learnin! U gotta read, read, read, and READ somemore!!! Good farmin'!

i have a 5x5 flower room. how would i set somthing like this up. i was told the big thing was cuting clones from a 2week flowering plant would make it grow better for a sog. is it just putting chicken wire up to alow the to of the plant to grow out.

i have a 5x5 flower room. how would i set somthing like this up. i was told the big thing was cuting clones from a 2week flowering plant would make it grow better for a sog. is it just putting chicken wire up to alow the to of the plant to grow out. plz help