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10X10 Square Ft. Room

How many 1k Lights should I use on A 10x10 room??.......4?

2- Metal Halides w/Hortilux Flower Bulbs
2- Hps w/Hortilux flowering Bulbs
 

rty007

Member
some more info would not hurt...

1 what kind of grow? sog/bushy?
2 clearance of the room? is a double decker grow an option?
3 what kind of ventilation you have?
4 are you limiting plant count?
 

slappyjack

Member
4 4x4 trays and 4 lights would be perfect IMO.

I'm setting up the same in a 6'x18' space, but wish I had 10x10 to work with.
 

dominicangreen

Weed Robot
Veteran
metal halides is not a good flowering bulb.. lets say you have 6 1000w hps with hood if you hang witout hood 2-1000w MH bulbs then this idea will work as you will now cover all areas with the MH in combonation with the HPS will give all color spectums your looking for a plant needs......if you put the MH in hoods then you will only be giving the plants in a 4x4 square foot that light only you will not get the combo your looking for..i would hang across the room from eachother that will give you good coverage
 

chef

Gene Mangler
Veteran
4 1k verts would cover it, as would 4 big horizontal fixtures.
I really like my 48" Vertizontal domes.
 

MarquisBlack

St. Elsewhere
Veteran
4 4x4s would be perfect. Comfortable room dimensions. I agree with SlappyJack, oblong rooms can be a pain.
 

growclean

Grow Clean.... Go Fast!
I am building a room with a 12X10 flowering area and 4 4x4s is the way that I am going. By the way I am debating between hps and led right now. Have you thought about venting, electric etc?
 

Lazyman

Overkill is under-rated.
Veteran
metal halides is not a good flowering bulb.. lets say you have 6 1000w hps with hood if you hang witout hood 2-1000w MH bulbs then this idea will work as you will now cover all areas with the MH in combonation with the HPS will give all color spectums your looking for a plant needs......if you put the MH in hoods then you will only be giving the plants in a 4x4 square foot that light only you will not get the combo your looking for..i would hang across the room from eachother that will give you good coverage

Just to play devil's advocate with you:

A good MH bulb not only puts out far more blue than any HPS, but also more 680nM red! Although overall lumens are lower (90K vs 140-150K for HPS) the PAR watts are similar, and on my trays the MH buds usually turn out frostier and more dense than their HPS counterparts. Yield remains the same. There are a couple good threads in this forum on it, but all MH is fine, or do half and half so there is plenty of overlap between HPS and MH, the plants in the middle will be the happiest in the garden typically.
 

Lazyman

Overkill is under-rated.
Veteran
I am building a room with a 12X10 flowering area and 4 4x4s is the way that I am going. By the way I am debating between hps and led right now. Have you thought about venting, electric etc?

LED is not comparable to HPS in any way, LED's should only be used for veg, and for small plants at that. You're not going to veg anything 4 feet tall with just LED's.
 

growclean

Grow Clean.... Go Fast!
LED is not comparable to HPS in any way, LED's should only be used for veg, and for small plants at that. You're not going to veg anything 4 feet tall with just LED's.

Really? Where are you getting this info from? (Not attacking, really asking, I am trying to figure this out right now!) I have posted alot in this thread:
https://www.icmag.com/ic/showthread.php?t=143572&page=7

Thanks again for the help, and repped of course!
 

Lazyman

Overkill is under-rated.
Veteran
Really? Where are you getting this info from? (Not attacking, really asking, I am trying to figure this out right now!) I have posted alot in this thread:
https://www.icmag.com/ic/showthread.php?t=143572&page=7

Thanks again for the help, and repped of course!


No sweat, I've read a number of research papers, grow journals, and lots of manufacturer data (as well as countless threads here) on LED's. The only mildly successful use of them has been on small vegging plants, when flowered with just LED"s the buds will be small and wispy, a common problem when plants are poorly illuminated.

Regardless of the wavelengths that LED's can spit out, they are not bright enough to brightly illuminate anything, even right against the canopy. Not enough PAR watts is not enough PAR watts, you'd have to have 1000W of LED's to equal the lumens of a 1000W HPS, and it would cost you thousands of dollars to do so, and it would STILL penetrate the canopy very poorly.

LED's are here to stay, but they need to improve significantly on the wattage and come down significantly in price before they are a reasonable option for indoor growing. Until then, we have a perfectly decent "wheel" that needs no re-inventing, the 400W, 600W and 1000W bulbs. Use those and get good results. Don't and get poor results. Use what everyone else uses and works well!
 

Lazyman

Overkill is under-rated.
Veteran
2 1ks on a mover. save your $$


Much as I want to agree with you, I just haven't seen a mover double the effective wattage of a grow. Stoney419's grow is an anomaly IMHO.

Wouldn't you get the same effect just doubling the height of the lamp, increasing its footprint to the same size as with the mover? Either way you're reducing the amount of lumens/par watts by at least half, which (ordinarily) reduces bud quality and yield. I think movers are best to use to light oddly-shaped grows, but where possible stationary lights provide more light on the whole canopy simultaneously.

In short, I feel that a mover is not a substitute for additional lamps, they just make it so you don't have to manually rotate the pots to get all the sides illuminated.

Movers also make it harder to air cool hoods, are one more thing to buy/break/replace, and have started more than one grow fire when a cord snags on something. I am just very anti-moving-parts in my grows.
 

growclean

Grow Clean.... Go Fast!
No sweat, I've read a number of research papers, grow journals, and lots of manufacturer data (as well as countless threads here) on LED's. The only mildly successful use of them has been on small vegging plants, when flowered with just LED"s the buds will be small and wispy, a common problem when plants are poorly illuminated.

Regardless of the wavelengths that LED's can spit out, they are not bright enough to brightly illuminate anything, even right against the canopy. Not enough PAR watts is not enough PAR watts, you'd have to have 1000W of LED's to equal the lumens of a 1000W HPS, and it would cost you thousands of dollars to do so, and it would STILL penetrate the canopy very poorly.

LED's are here to stay, but they need to improve significantly on the wattage and come down significantly in price before they are a reasonable option for indoor growing. Until then, we have a perfectly decent "wheel" that needs no re-inventing, the 400W, 600W and 1000W bulbs. Use those and get good results. Don't and get poor results. Use what everyone else uses and works well!

Lazyman,
What do you think of these: https://www.icmag.com/ic/showthread.php?t=143551 ?

The creator is a vendor here and essentially claims that we can expect to recieve double the yields utilizing half the light. If this is true than it is obviously fantastic! You have apparently read up quite a bit on the technology. Do you believe that the changes that they have made to their lights might make up for some of the defeciencies that you have previously read about?

Here is where our current discussion is: https://www.icmag.com/ic/showthread.php?t=143572&page=7

Thanks if you have time to post your opinion, I know some of us are "on the fence" and it is obviously quite a major purchase!
 

Lazyman

Overkill is under-rated.
Veteran
126w = 5K lumens. That is a paltry 39.68 lumens per watt.

600W HPS=90K lumens, or 158 lumens per watt.

The LED panel would have to provide 4 times more PAR light than a regular HPS just to EQUAL the HPS, let alone surpass it. I've never seen an LED grow go much over 1gpw, and it would have to be 4GPW to beat an HPS. Just ain't happening with 1W LEDs. Maybe when they have 5000lumen single LED's that can be assembled into an inexpensive panel of them, but they don't exist yet.

If you can find a grow journal anywhere I'll retract my words, but I've never even seen a 20 plant grow with LED's, let alone a 100 plant grow. I've considered them for veg lighting though, just not sure they're a better investment than 8-bulb T-5's.
 

growclean

Grow Clean.... Go Fast!
126w = 5K lumens. That is a paltry 39.68 lumens per watt.

600W HPS=90K lumens, or 158 lumens per watt.

The LED panel would have to provide 4 times more PAR light than a regular HPS just to EQUAL the HPS, let alone surpass it. I've never seen an LED grow go much over 1gpw, and it would have to be 4GPW to beat an HPS. Just ain't happening with 1W LEDs. Maybe when they have 5000lumen single LED's that can be assembled into an inexpensive panel of them, but they don't exist yet.

If you can find a grow journal anywhere I'll retract my words, but I've never even seen a 20 plant grow with LED's, let alone a 100 plant grow. I've considered them for veg lighting though, just not sure they're a better investment than 8-bulb T-5's.

OK, I am taking your advice. We are just sticking with 1000w HPS I think. Maybe in 6 months to a year we will be ready and so will the lights! Thanks for your opinion! I will post some more pics of our new rooms after tomorrow!
 

Lazyman

Overkill is under-rated.
Veteran
OK, I am taking your advice. We are just sticking with 1000w HPS I think. Maybe in 6 months to a year we will be ready and so will the lights! Thanks for your opinion! I will post some more pics of our new rooms after tomorrow!

I think that's a smart move for flowering lights, but I don't think it will be a year, probably more like 4-5 before a good LED lamp comes along. You'll get good use out of that 1K though.
 

Phillthy

Seven-Thirty
ICMag Donor
Veteran
with my mover and square footage i have about 25watts per square foot and have no trouble growing big buds and quality smoke. if the rest of your environment is dialed in you should be straight. if money and cooling isnt a problem and yield is the ultimate concern then more lights would probably suit you well.
 
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