1000w LED grow lights.

Hey guys, yet anothet question for you. Are 1000w LED lights any good? If you have read any of my previous posts you will know that my plan was to have 3x600w hps lights in a 2x2x2m (4m2) tent. After much trial and error ive found that i can barely keep the tent cool enough with just 1 600w hps light going. Thats with a 6inch carbon filter and extractor fan a 5 inch intake fan and 3 oscelating fans within. So was looking into the LED option but most of what ive read is its on the fence really, some say its good some say dont bother. Most of what i read also says that hps lighting out does the LED's when it comes to yield etc but im clearly going to have to find an alternative. Also in this size tent would i be able to grow 6 big plants under 1 1000w LED or would i need more? Any info greatly appreciated as always. Thanks

Quick update. Should of mentioned before that all 3 lights are just stand alone. Would cool tube reflectors n ducting running straight through to extractor fan and carbon filter make an effective impact on heat reduction? Thanks again.

Blenko420 said:

Quick update. Should of mentioned before that all 3 lights are just stand alone. Would cool tube reflectors n ducting running straight through to extractor fan and carbon filter make an effective impact on heat reduction? Thanks again.

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Sure, and I might be wrong, but isn't the order filter, fan, cooltube? The hot air is reducing the lifetime of the fan, so push the air out. Filter, cooltube, fan would also work, most important is, that the filter is infront to prevent dust inside the cooltubes.

Blenko420 said:

Quick update. Should of mentioned before that all 3 lights are just stand alone. Would cool tube reflectors n ducting running straight through to extractor fan and carbon filter make an effective impact on heat reduction? Thanks again.

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Not sure if we have spoke before, but in case not, I used to run a 2mx2m with 3x600w hps. On there own I couldn't get 2 running within workable temps. With cooltubes I could run 3 but needed an 8" fan to do it. So yes they are worth using if you need them. There are negatives such as loss of light due to glass but you can have them much closer to negate that loss.

So the cool tubes will have a substantial impact on the heat reduction? Thanks for the swift reply.

Blenko is your tent with the one light in all set up right now?

Yes they will, but if your struggling with one 600 without them I cant see them making so much difference that 3x600 would be workable. That's a big increase.

Can you take a picture of your set up?

Edit, to answer your first question, yes 1000watters are very powerful lights, but they will only cover a 5x5 ft space. 600s are more efficient, you get more lumens per watt and as far as hps goes fit your area. When I used them I had 1 per square meter and had 1m square of working space.

Ill get a pic now bro. Atm my plants are still small will show a pic of those too they are growing under a small 26w led grow strip for now been 9 days since i potted the clones. In this time ive been testing the 600w lights trying to get the temps down i even put an AC unit actually in the tent with exhaust vented through ducting this improved temps massively but just came with more problems like no humididty aand the fact that the exhaust from that ac unit would reek because its not passing through a carbon filter which also ill add isnt in the tent as of yet because the plants are not creating any smells as of yet. Pics will follow

Yeah so heres pics best angles i could get to show the space im working with and a pic of my clones as they are now. Yes some are lagging i growth due to the fact that they were brought to me crushed and battered can see full story of that debacle in my other post "Poor clone transportation" (sorry for the double upload of same pic) my bad lol

Also see how its already 25 degrees inside tent with just small led grow strip and all fans going. Atm its summer here in uk average temps outside are 20 degrees at first i figured ill be vegging them for another 7 weeks or so with some LST before going into flower that puts me mid september for flower temps should be much cooler by then but our weather is so unpredictable. Was planning on vegging under just 1 600w.

Do you run your lights during the night? I wouldn't have a chance running my lights during the day. Lights going on here at 10pm...

Due to working obligations and time frames ive opted for lights on during day and off at night atm the lights switch on at 4 am and switch off at 10pm another reason for this is that the tent is situated in the room next door to my bedroom so the all the fans etc being on during the night would keep me awake it isnt crazy loud but even a little consistent noise is enough for me to lose sleep lol

Blenko420 said:

Due to working obligations and time frames ive opted for lights on during day and off at night atm the lights switch on at 4 am and switch off at 10pm another reason for this is that the tent is situated in the room next door to my bedroom so the all the fans etc being on during the night would keep me awake it isnt crazy loud but even a little consistent noise is enough for me to lose sleep lol

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Have you looked into cob lighting? I am running 8 cobs for a total of 480 Watts. They run so cool that you don't even need cooling fans on the heat sinks. I have three plants filling a 1.5m X 1.5m x 2m tent. To make them super Frosty I am running an agromax pure UV light for an hour a day. Judge for yourself if it is enough light. Day 51 since flip.

Cool, this is why I wanted a pic.
Read this.
http://cannabis.com/faqs/growing/growroom-how-do-i-measure-temperature-correctly.html
Specifically the air temp and thermometer placement part.

The next thing is, I'm afraid you just wont be able to run that many lights in the daytime.

You really want to be running lights on at night. That way you get the coolest time to grow and in lights off the warmest part of the day, so less temp difference.
I know its a fucker with the noise but its just not feasible running that many lights in the day. Besides you need your extraction on all the time, the smell will build up and leak out without it and that's not good in the UK. Plus theres the humidity issue.

I assume your ducting is going out of the house? Chimney or window ect.
You will also need an 8" fan for extraction.
Its either all these points or cut down to one light for the summer and increase in winter.

Wow man thats a quality setup and plants are looking awesome good job bro. This is my first grow and did roughly 2 months research n planning prior to getting my first cuts 9 days ago but no amount of research can match experience thats why i live in this forum because just when i think ive solved 1 problem 2 more come with it haha thanks again man

coreywebster said:

Cool, this is why I wanted a pic.
Read this.
http://cannabis.com/faqs/growing/growroom-how-do-i-measure-temperature-correctly.html
Specifically the air temp and thermometer placement part.

The next thing is, I'm afraid you just wont be able to run that many lights in the daytime.

You really want to be running lights on at night. That way you get the coolest time to grow and in lights off the warmest part of the day, so less temp difference.
I know its a fucker with the noise but its just not feasible running that many lights in the day. Besides you need your extraction on all the time, the smell will build up and leak out without it and that's not good in the UK. Plus theres the humidity issue.

I assume your ducting is going out of the house? Chimney or window ect.
You will also need an 8" fan for extraction.
Its either all these points or cut down to one light for the summer and increase in winter.

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Yeah i was planning on vegging all under 1 light anyway im just trying to get all info i can on this while i still have time to act on it was only going to use 3 lights in flower. Also the info on proper temp readings was very helpful thanks man.

Blenko420 said:

Wow man thats a quality setup and plants are looking awesome good job bro. This is my first grow and did roughly 2 months research n planning prior to getting my first cuts 9 days ago but no amount of research can match experience thats why i live in this forum because just when i think ive solved 1 problem 2 more come with it haha thanks again man

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Never touched a seed before this year. This is actually my second grow. I went through all the heat issues with a thousand watt HPS. I eventually had two fans. One for the tent exhaust and one for the Cool Tube. When I switched to the cob LED lighting it's solved all my heat issues.

CoreyWebster is right about the fan. Once you're into flowering, you're going to have to leave the fan on all the time or your humidity will Spike when the lights go off. Too much humidity and you'll have mold.

Pretty amazing that your lighting up a 1.5x.5 with just 480w of cob @Axle4worc

You could consider a lightning rail, instead of a 3rd bulb. It would also reduce your heat output.

Lighting rail sounds like a good idea too man. Decided that the LED lights are out of the question. After more research ive found that unless im willing to pay a ridiculous amount of money they are not worth having so looking at cooltube reflectors for my lights if i can get temps down to a workable amount with 2 lights and tubes then depending on light placement would think that be enough to grow 6 plants. Is that enough light for 6?

on at 4am off at 10pm? Not at all necessary for more than 2 weeks of veg, then cut way back depending on sat or indica. That should save a ton of $$$$$

Also, Amare Technologies has a EU distributor. Check out the Pro 9