LED vs HID finally a clear winner!

Wattzzup

Well-Known Member
Ok guys the LED vs HID argument for me is finally over. My 600HPS bulb decided to explode and the hot bulb parts fell to the ground and melted a hole in the bottom of my tent. Luckily I am in the basement. But beware if you’re growing on carpet and using HID lights they CAN explode! 493ED4FF-DC76-4C4B-9FB1-5D0164009420.png
 

Wattzzup

Well-Known Member
So my question is, is there a LED that puts out heat? It’s a little cool in the basement and the plants won’t see 78-82.

I’m trying to flower a 4x4 and I need a light that puts off a little heat.
 

Wattzzup

Well-Known Member
In the summer I would be heating the basement while the upstairs is cooling. Not my first option but it may be what I end up doing. I was just wondering if anyone had a light that was known to put off a little more heat.

I can keep it ~70-74 but I don’t know about 78-82.
 

chronnie49

Well-Known Member
That's scary. I've had a 315 watt cmh bulb explode but it's double jacketed(i think thats the right term) so the outer casing kept everything contained.

I have automatic fire extinguishers in both tents just to be safe.
 

Milky Weed

Well-Known Member
So my question is, is there a LED that puts out heat? It’s a little cool in the basement and the plants won’t see 78-82.

I’m trying to flower a 4x4 and I need a light that puts off a little heat.
I have a hard time keeping heat up on my tent. I’ve resorted to pumping air in thru top and venting out bottom helps during lights on for sure. I also cut down how much air whips through the tent.



Im wondering if color temperatures can effect how much heat is output, like if a warm 3000k led puts out more heat or transfers more heat than a 4000k.
 

JustBlazin

Well-Known Member
In the summer I would be heating the basement while the upstairs is cooling. Not my first option but it may be what I end up doing. I was just wondering if anyone had a light that was known to put off a little more heat.

I can keep it ~70-74 but I don’t know about 78-82.
I'm on my first run with led light and my temps usually peak around 78 just before lights out, for most of lights on they are closer to 75 and my plants don't seem to mind
Screenshot_20211229-023200_Pulse.jpg
I'm thinking the spike to 82 was when I was taking light readings with my pulse monitor
 
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Coldnasty

Well-Known Member
That's scary. I've had a 315 watt cmh bulb explode but it's double jacketed(i think thats the right term) so the outer casing kept everything contained.

I have automatic fire extinguishers in both tents just to be safe.
This has always been my biggest fear as well. 2nd is me going back to my smoke spot 2 times before I leave in the A.M. cuz I’m scared I’m gonna burn my shit down. Lol
 

HydroKid239

Well-Known Member
I grow in a room that gets pretty cold in the winter because of the insulation & it’s right next to a window. I only have 75w going in the 2.3x2.3 tent and I’m hovering around 75F with a space heater outside the tent pointed at it. One good thing about the small space is I have 8 - 1gal pots in there so the humidity stays at 65-70%. It works for now.. I have a 4x4 to set up in about a month or so. We’ll see how that goes.
The space heater I have is small af tho. So it could be better.. but it’s not a basement. They also have slim radiators.
 

chronnie49

Well-Known Member
This has always been my biggest fear as well. 2nd is me going back to my smoke spot 2 times before I leave in the A.M. cuz I’m scared I’m gonna burn my shit down. Lol
Haha I bet fire is every growers biggest concern other than getting caught by the landlord or cops.

I paid €100 for 2 automatic fire extinguishers which is well worth it for the peace of mind.
 

Rocket Soul

Well-Known Member
I have a hard time keeping heat up on my tent. I’ve resorted to pumping air in thru top and venting out bottom helps during lights on for sure. I also cut down how much air whips through the tent.



Im wondering if color temperatures can effect how much heat is output, like if a warm 3000k led puts out more heat or transfers more heat than a 4000k.
As for leds 3000k/4000k shouldnt have any difference in radiant heat output.
With hid its a bit tricker: 1000w of hps or mh should be the same heat, but the mh coil/filament inside the bulb burn hotter: the 2200K /5000k spectrum rating is related to the light emissions of a blackbody object at a certain temprature.

One thing to note though re led color temps:
One of the reasons you need to control your lower temp limits with leds is due to transpiration: you need to work your environment and temps to get your plant to "sweat" which is the motor of your roots drinking. However many people forget that this is not the only factor in transpiration; spectrum, specifically blue and uv, have a very strong effect on the stomata opening. So even though the 4000k will give the same heat as 3000k the 4000k will have a leg up in the cold since it has almost double the amount of blue. But as you approach maximum light intensity this advantage will get less and less as the temps are also needed for the metabolism to keep up with the photosynthetic rate.
 

Horselover fat

Well-Known Member
If I was having difficulties with keeping temps up I would try using my lung room to raise temp. Less air exchange in the vent room should help. Or I could even have my tent in a tent. The leds do produce loads of heat, but we suck it out of the grow area and send it on it's way.
 
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