fredcdobbs
Member
with a 1000 watt hps it's supposed to cover 8ft x 8ft..anybody have experience with this?..will it do what it's supposed to?
sunlight supply silver sun reflector
- Thread starter fredcdobbs
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8x8 is pushing it for any reflector and a 1000. i dont go over 5x5.
fredcdobbs
Member
are you familiar with the reflector i'm speakin of?..this thing is a disk and it's either 42 or 49 inches across..at the store they actually said it'd cover 8x9 ft area..even if it covers only 6x6 it'd be a lot better than my present 4x4..$180
it's not a magic hood though man, it can't make light come from nowhere, the reason people go with 4X4 as a standard for a 1000 watt is because it's about 62.5 watts per sq. foot...which is right in the recommended window of 50 to 75 watts per square foot.
an 8x8 area is 4 times bigger than a 4x4 foot print and you end up with 15.625 watts per square foot, anybody will tell you that is no where near enough to grow a decent harvest...NO MATTER WHAT KINDA SHINY THING YOU WRAP AROUND IT! lol
an 8x8 area is 4 times bigger than a 4x4 foot print and you end up with 15.625 watts per square foot, anybody will tell you that is no where near enough to grow a decent harvest...NO MATTER WHAT KINDA SHINY THING YOU WRAP AROUND IT! lol
fredcdobbs
Member
was actually lookin for someone who has experience with this reflector but thanks anyway..
fred... he's right. The rule of thumb is 50w per sq ft. Reflected light has less penetrative power than direct light. (The light travels up to the reflector, the reflector absorbs some of the light and converts it to heat and then bounces the rest back down. Which increases the distance each photon has to travel vs. the light coming right off the bulb aimed at your plants.) So even the fanciest reflector is not going to make that work for you.
Even bare-bulb, with your 1000w hung in the center of the room vertically and plants around it, it's not going to effectively cover 8x8. YOu can do it, and plants will grow. But you are NOT going to get the results you would get in a smaller footprint.
8x8=64 sq ft. 1000w/64=15.625w per square foot.
4x4=16 sq ft. 1000w/16=62.5w per square foot.
You could go 4.5 x 4.5=20.25 sq ft. 1000w/20.25=49.38w per square foot.
No matter what reflector you use or don't use, for every foot you get away from the bulb, your light density is cut in 1/4.
So, for example, a Hortilux "Super Lumen" HPS 1000w puts out 127,000 lumens per square foot at a distance of 1 ft. from the bulb.
At a distance of 2 ft. from the bulb, it is putting out 31,750 lumens per square foot.
At a distance of 3 ft. from the bulb, it is putting out 7,937.5 lumens per square foot.
At a distance of 4 ft. from the bulb, it is putting out 1984.375 lumens per square foot.
At a distance of 5 ft. from the bulb, it is putting out 496 lumens per square foot.
At a distance of 6 ft. from the bulb, it is putting out 124 lumens per square foot.
At a distance of 7 ft. from the bulb, it is putting out 31 lumens per square foot.
At a distance of 8 ft. from the bulb, it is putting out 7.75 lumens per square foot.
Hope this helps.
If you're really interested in maximizing your grow area, look into the vertical/colosseum section of this site. You'll get more coverage for your dollar and you won't spend a nickel on reflectors.
Even bare-bulb, with your 1000w hung in the center of the room vertically and plants around it, it's not going to effectively cover 8x8. YOu can do it, and plants will grow. But you are NOT going to get the results you would get in a smaller footprint.
8x8=64 sq ft. 1000w/64=15.625w per square foot.
4x4=16 sq ft. 1000w/16=62.5w per square foot.
You could go 4.5 x 4.5=20.25 sq ft. 1000w/20.25=49.38w per square foot.
No matter what reflector you use or don't use, for every foot you get away from the bulb, your light density is cut in 1/4.
So, for example, a Hortilux "Super Lumen" HPS 1000w puts out 127,000 lumens per square foot at a distance of 1 ft. from the bulb.
At a distance of 2 ft. from the bulb, it is putting out 31,750 lumens per square foot.
At a distance of 3 ft. from the bulb, it is putting out 7,937.5 lumens per square foot.
At a distance of 4 ft. from the bulb, it is putting out 1984.375 lumens per square foot.
At a distance of 5 ft. from the bulb, it is putting out 496 lumens per square foot.
At a distance of 6 ft. from the bulb, it is putting out 124 lumens per square foot.
At a distance of 7 ft. from the bulb, it is putting out 31 lumens per square foot.
At a distance of 8 ft. from the bulb, it is putting out 7.75 lumens per square foot.
Hope this helps.
If you're really interested in maximizing your grow area, look into the vertical/colosseum section of this site. You'll get more coverage for your dollar and you won't spend a nickel on reflectors.
Greenlife1
Member
I have run one of those in the past(can't where I am now..I need air cooled) an used a 6x6 space to fit it in..and it worked great. The rest of the guys are right in that you want more watts per sqft, but i was pulling 18 ozs no prob out of that area. That reflector is nice in that it spreads the light better than the little air cooled hoods like the yeild master 2's.
I
Iron_Lion
You dont need to have experience with that reflector to know 1k is not sufficient for an 8x8 area, this reflector cant magically produce more watts. Maybe if you were growing lettuce 15w per square foot might be ok but not for growing weed unless you want plants that look like the Charlie Brown xmas tree.
If you need to do a larger space than you have light for get a light mover but even then you're not going to get 8x8 out of a single 1k.
fredcdobbs
Member
` greenlife,thanks for sharing yer experience..at 6x6 it'd pay for itself the 1st crop..
lol the kid has no respect for anybody's opinions unless they say they have tried the hood he wants...you probably wont get your answer though...
it's called MATH man, maybe the reason nobody has tried it and can tell you it's bs is that THEY DID THE MATH FIRST! green life says he has tried it, though no offence to green life, but with a 1000 watt it's possible to get like 36 ounces in a 4X4 space, so tellin' the kid it works as advertised when your only pulling about half a gram per watt in a space that is more than FOUR TIMES the size needed to grow 18 ounces... with more than twice the watts many people need to get that kind of yield. if people can grow 1000 grams in a 4x4 area with a regular air cooled hood(lower temps than a parabolic hood, by a LOT) why would you ever want to grow less in a larger area? do you like fluffy popcorn buds? cause if you stray to far below the 50 watts per square foot your bud density will drop off quickly...
THE HOOD CHANGES NOTHING! PHYSICS IS PHYSICS! the fact of the matter is the bulb will only put out so much bud, and you can put any reflector in the world on it and it's not going to change that. sure some are better than others but not by a whole lot, definitely not enough to magically make a bulb cover 4 times the space...do you have any idea how many enormous warehouse grows there are out there? if you have 100 thousand watts of light running you are obviously going to do it in the most efficient way possible, fact is they use the industry standard of 4x4 feet because it works the best by far! most use air cooled hoods daisy chained in big rows, that i have seen at least, parabolic reflectors are too hot for many large scale warehouse grows. spreading more plants over a bigger footprint under the same bulb just means less buds per plant, and stemmy stringy buds at that. you will NOT gain yield!
it's called MATH man, maybe the reason nobody has tried it and can tell you it's bs is that THEY DID THE MATH FIRST! green life says he has tried it, though no offence to green life, but with a 1000 watt it's possible to get like 36 ounces in a 4X4 space, so tellin' the kid it works as advertised when your only pulling about half a gram per watt in a space that is more than FOUR TIMES the size needed to grow 18 ounces... with more than twice the watts many people need to get that kind of yield. if people can grow 1000 grams in a 4x4 area with a regular air cooled hood(lower temps than a parabolic hood, by a LOT) why would you ever want to grow less in a larger area? do you like fluffy popcorn buds? cause if you stray to far below the 50 watts per square foot your bud density will drop off quickly...
THE HOOD CHANGES NOTHING! PHYSICS IS PHYSICS! the fact of the matter is the bulb will only put out so much bud, and you can put any reflector in the world on it and it's not going to change that. sure some are better than others but not by a whole lot, definitely not enough to magically make a bulb cover 4 times the space...do you have any idea how many enormous warehouse grows there are out there? if you have 100 thousand watts of light running you are obviously going to do it in the most efficient way possible, fact is they use the industry standard of 4x4 feet because it works the best by far! most use air cooled hoods daisy chained in big rows, that i have seen at least, parabolic reflectors are too hot for many large scale warehouse grows. spreading more plants over a bigger footprint under the same bulb just means less buds per plant, and stemmy stringy buds at that. you will NOT gain yield!
Hey fred, since you don't like good advice, how about this:
Please, please, PLEASE go out and buy this thing and run your 8x8 with it and post your results for the edification of the class.
(And then feel free to apologize to all the people who are trying to look out for you instead of blowing smoke up your ass.)
BTW - i'm nearly finished building my new setup which will be a 2.5' x 6' vertical colosseum with 2 x 400w bulbs and NO REFLECTOR. I'll bet you that I can harvest more than 18 zips in 15 square feet (instead of 64) with less wattage and no reflector.
Please, please, PLEASE go out and buy this thing and run your 8x8 with it and post your results for the edification of the class.
(And then feel free to apologize to all the people who are trying to look out for you instead of blowing smoke up your ass.)
BTW - i'm nearly finished building my new setup which will be a 2.5' x 6' vertical colosseum with 2 x 400w bulbs and NO REFLECTOR. I'll bet you that I can harvest more than 18 zips in 15 square feet (instead of 64) with less wattage and no reflector.
fredcdobbs
Member
so how many crops have you grown with this reflector?..thats what i thought.,ZEROOO.zilch,none nada..you can argue with yerself til yer blue in the face but it doesnt change anything.now git!!!
good luck.you asked for info and you got it. we cant actually make you listen tho. enjoy your popcorn wispy buds. if i listened to even half the bullshit these hydro store guys tell ya i would be really screwed. make sure you document your grow. maybe magic will happen in your underlit grow
Heh. See guys? It's a magic reflector. You don't have to do the math or consider physics when you buy from Dumbledore.
it only works if you plant magical seeds too
fredcdobbs
Member
does somebody need a hug?..or maybe i need to take my belt off and uh,,,well you boys know what happens when big fred takes his belt off...it aint pretty..
I was in the outhouse with my belt off when my black lab got himself chased by a moose mother with her calf. Ran right up to me he did, I leaned forward to see what the ruckus was and face to faced the moose. Probably a good thing I couldn't run in that condition, played stoneface for about two whole minutes, 5 or 6 years in limbo time.
But back to the magic light topic. I'm using CMH in a small budroom and 400w just wasn't enough and 2 x 400w with reflectors would not fit. I took a horizontal plane laser, marked and cut 2 reflectors to fit 18" spacing. The reflectors siamesed together perfectly, doubling the light density evenly across the canopy.
Could not this wonder reflector be split and a leaf like in an expanding dinner table be added, maintaining the even light pattern but with twice as much?
How about tripling with a light spreader in the center?
Way too many cute put downs when this is a tool that could make a bright budroom easier.
It takes 7 x 400w to get smooth even light on my 7 foot canopy, if this reflector could be modified to work with 3 x 1000w and do an 8 foot circle, well, I would be looking to give new builders different advice than I do now.
My budroom does excellent, but seven lights, seven timers, seven fans, seven reflectors. Simple would be oh so much better. :kitty:
But back to the magic light topic. I'm using CMH in a small budroom and 400w just wasn't enough and 2 x 400w with reflectors would not fit. I took a horizontal plane laser, marked and cut 2 reflectors to fit 18" spacing. The reflectors siamesed together perfectly, doubling the light density evenly across the canopy.
Could not this wonder reflector be split and a leaf like in an expanding dinner table be added, maintaining the even light pattern but with twice as much?
How about tripling with a light spreader in the center?
Way too many cute put downs when this is a tool that could make a bright budroom easier.
It takes 7 x 400w to get smooth even light on my 7 foot canopy, if this reflector could be modified to work with 3 x 1000w and do an 8 foot circle, well, I would be looking to give new builders different advice than I do now.
My budroom does excellent, but seven lights, seven timers, seven fans, seven reflectors. Simple would be oh so much better. :kitty:
fredcdobbs
Member
how refreshing.phaeton you are a thinker and now you've got me to thinkin..thanks for sharing yer open minded thoughts and experience..
