Led Growing Is The Way Of The Future My Friends
- Thread starter curly604
- Start date
eyecandi
Well-Known Member
as far as yields, i'm on my first run with the SG602 and have 2 of my favorite girls under it, grown for 2 years under HIDs, so I know her very well and will know the differences in structure and weight. come end of May I'll know for sure if the investment was worth it.
Senseimilla
Well-Known Member
They also only come in 2' lengths (too short for my cab) and 4' lengths (too long) -- that is called a limitation. In contrast, I have 4 240w blackstars that almost perfectly fit my cab. Nothing wrong with HOs though they are just a choice. LEDs are the more expensive option that doesn't mean they're worse.
Fantastic, now let me know when I'm going to be able to put an equivalent amount of HPS in my cabinet without elaborate venting? Can't do it.
Sorry that is just not true. I am running over 500ws of ACTUAL led light (960 watts of bulbs, around 520-560w of actual light output) - FOUR 240w blackstars, producing LESS heat than a 400w digital HID in a cooltube with 252cfm inline fan venting it directly out of the cab. I was told by multiple people I would have heat problems as bad or worse than the 400w. Glad I didn't believe them. The 4 blackstars sit in there with NO active venting produce less heat than the 400w with active venting. I really hate when people talk about stuff they don't know. Perhaps this was true with old models -- my units are 2012s -- certainly not true now unless you just have an inefficiently designed light. The way mine are designed the hot air is pushed to the top of the cab as well due to the way the LED air in take/fans draw the air. That is on the cheap old blackstar. I imagine on a higher end light with better heat sinks and design, they are even more heat efficient.
budman111
Well-Known Member
The last post on that site was Tue Dec 13, 2011ugcf.info led friendly forum for all
curly604
Well-Known Member
sup everyone been a while since i posted in here , thought i would throw up some shots of my flowering tent its at day 8 today com by and check my thread if ya havent cheers all :
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Harrekin
Well-Known Member
Physics state that 500w of power will produce more radiant heat than 400w, LEDS produce less direct heat, but the radiant heat is the same regardless. It's the same as the people who say 600w of CFL's produces less heat than a 600w HPS...no they produce roughly the same.
Long story short, LEDs are awesome, but overstating them and people being disappointed hurts their reputation more than anything else. And an aircooled 400w HPS/MH produces less heat than 100w of CFLs, even if you run it on a 600w ballast, so recheck your figures.
Senseimilla
Well-Known Member
Watt for watt that may be true in a hypothetical matchup, but overall heat no way. First of all, on an HPS the heat comes from one source. On the LEDs the heat is spread out and vented in each light -- each of my LEDs has *THREE* fans venting air straight up. Second the light in hid is not the only thing producing heat -- ballast does as well. Last, you go recheck your figures. In *MY* cab more watts produced less heat for MY setup. So for *ME* they are better. Do you have any actual experience with LEDs replacing similar wattages or are you just talking out of your ass?
eyecandi
Well-Known Member
seriously. I understand the physics, but reality is reality. my 3amp LED panel puts out less thermals in my room while running, then a 3amp HID in the same environment - no venting at all, just the lights/ballasts in one room. HID = 95+ deg temps. LED = 78-80 degreees.
squarefodder
Active Member
How big is your grow room?
each person has a diff set of parameters in their grow room. One person may get little heat build up while another gets more due to the environment. I have 3 led units and they build up heat in MY cab without ventilation. For others it may be different.
Senseimilla
Well-Known Member
It'll depend on your individual lamp too.
Senseimilla
Well-Known Member
I'm saying the heat generated by one LED manufacturer's light and another is going to vary depending on the ventilation, chips, heatsinks and design. Is this thing on?? I thought this was an LED thread 
As for HIDs, bulbs are RELATIVELY equal (though manfucturer and amount of energy going through based on ballast is going to vary) but there's huge differences between different ballasts putting off heat. My old non digital HID ballast put off quite a bit.
As for HIDs, bulbs are RELATIVELY equal (though manfucturer and amount of energy going through based on ballast is going to vary) but there's huge differences between different ballasts putting off heat. My old non digital HID ballast put off quite a bit.
Harrekin
Well-Known Member
Yeah maybe initially that is true, but without ventilation the heat will build up to roughly the same. Check out the Second Law of Thermodynamics if you don believe me, all energy including light becomes heat.
PCs have a million cooling fans and still heat a sealed room, with LEDs the heat is spread better, but in a closed system without ventilation they will heat up to the same as HIDs of equivilent wattage after a while.
That is unless your LEDs come with a micro-black hole generator to remove the heat
Harrekin
Well-Known Member
You cant run a sealed room with CFLs without AC, seriously. How do you renew CO2 levels since your room is "sealed"?
Harrekin
Well-Known Member
And before the "you're an LED hater" comments start, I'm buying two Blackstars for supplementary light for my flower rooms for my next grow...but the assertion that any electronic device is "thermal neutral" in a small sealed room is ridiculous.
Even a games console heats up after a little while...
Even a games console heats up after a little while...
eyecandi
Well-Known Member
it puts out heat, but my room is in my garage and it's winter still, so I'm not saying it's thermal neutral at all. and for CO2, I open the door a couple times during lights on and will be adding an exhale bag shortly to boost CO2. dunno what to tell ya, i specifically recorded outdoor temps, garage room temps and flowering room temps to compare. maybe the difference is between magnetic and digital/electronic ballasts - i only had a magnetic to test with and most digi's run a bit cooler, but i don't know how much the difference would be (enough for a 10deg swing?)
