Help! Why is my tent heating up so bad

igrowpot87

Active Member
this is the FIRST time i have ever said this but 87.5 watts a sqft is too much and uncalled for with these samsung diodes an others out.
im using cheap chinese cobs lol. looks like im going to have a to get a few crops before i switch, i dont want to be ordering crap from china right now im already sitting at forty days.
 

TreeFarmerCharlie

Well-Known Member
do you have a par meter
BTW, I don't bullshit people, and I have no issue admitting when I make a mistake or get caught saying something that is incorrect. You can see some of my past grow journals at the following link and you will see that those lights were holding me back when you compare the growth from each week against the grow I have going now.

 

getogrow

Well-Known Member
You wouldn't need to run lower temp but you may be able to run a bit lower.
The IR or UV in an LED will be a lot less than that of HPS or the sun

Your plants leaf surface temp will still only be a couple of degrees difference from air temp.
im sorry for jumping in but i dont understand this. So the leds have less uv and ir's . Does that mean they grow better at 85 vs 78 ? I would like this explained for dummies. Thanks a lot!
 

igrowpot87

Active Member
looks like i should have signed up to this site over a month a go lol. at least the plants growing, and growing well. i do like these f strips not gonna lie. my power bill is cheap i already got a full bill with the lights on 20/4 went up forty dollars so your saying this will run ten bucks a month, per 500watt ish?
 

getogrow

Well-Known Member
looks like i should have signed up to this site over a month a go lol. at least the plants growing, and growing well. i do like these f strips not gonna lie. my power bill is cheap i already got a full bill with the lights on 20/4 went up forty dollars so your saying this will run ten bucks a month, per 500watt ish?
that de[pends on how much YOUR power co charges you by the kilowatt hour. 500 watts costs me about 20 bucks a month running 12 hours a day.
1000 watts =a kilowatt. 1000 watts running for one hour = 1 kilowatt hour. (At least thats how they charge for power here in the states)
 

TreeFarmerCharlie

Well-Known Member
looks like i should have signed up to this site over a month a go lol. at least the plants growing, and growing well. i do like these f strips not gonna lie. my power bill is cheap i already got a full bill with the lights on 20/4 went up forty dollars so your saying this will run ten bucks a month, per 500watt ish?
Like I said, man, a lot of us have made the same mistakes. I knew the COB LED lights I had would do ok, but I just never really understood how much of a difference quality LED made until I built my own and had them running for a week. They are definitely good to start out with, and will help you learn to grow, but you will get to a point where you just plateau and can't get better results, because the plants just aren't getting enough light. You pushing all those watts will definitely help, but your money would be better spent on quility LEDs that cost less to run and produce less heat. You should be able to find a power cost calculator online that will let you put in the watts, hours of daily use, and your KWH cost from your supplier.
 

TreeFarmerCharlie

Well-Known Member
whats your thoughts on those lol at that price you might as well go f strip
There are some COBs that are great, but I haven't done enough research to give you good advice on them. I know enough to be dangerous so I ask those in the LED forum who know a hell of a lot more than I do for recommendations.
 

SpawnOfVader

Well-Known Member
So lower IR levels of LEDs has been mentioned a few times in this thread. That seems to be just a generalization though? The new RSPEC LEDS have specific IR bulbs spread throughout.


(My cheaper QB LEDS do as well, just not as many as the HLG one)
Could also do that question in the LED forum instead, this thread has gone pretty off the rails...

FYI- the heat issue I started this for originally is resolved.
 

SpawnOfVader

Well-Known Member
I wanted it capable of running at 75 or lower in current conditions because it's only ~90 right now and when we get weeks straight of 110 plus I wanted the wiggle room. Instead of a compressed "S" curve on a 3 foot section for my intake I've made the intake 6' and it runs all the way to draw directly from the AC vent. Since I'm not prepped to do the exhaust outside today, that is now pointed directly at the AC intake for my house (from ~8 feet away).

The thermometer I had was also inaccurate. Running at 73-74 degrees now and the fan isn't even cranked up all the way.
 

coreywebster

Well-Known Member
im sorry for jumping in but i dont understand this. So the leds have less uv and ir's . Does that mean they grow better at 85 vs 78 ? I would like this explained for dummies. Thanks a lot!
LEDs create little radiant heat unlike HPS or the sun so we rely on higher air temp to keep leaf temp up and keep metabolic rate and transpiration up.
 

coreywebster

Well-Known Member

getogrow

Well-Known Member
So lower IR levels of LEDs has been mentioned a few times in this thread. That seems to be just a generalization though? The new RSPEC LEDS have specific IR bulbs spread throughout.


(My cheaper QB LEDS do as well, just not as many as the HLG one)
Yes , i believe thats generalized. HIDs have a ton of reds in them already.....with leds, you have to add them. Im going to assume HLG , QB, ect .. all use just the right amount of IR and uv's.
 
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