LED or 600w HPS in closet with fans only?

S

Smooooth

Member
I have two LED panels, 110v & one 600w HPS with a winged hood.

my plant is 8 days into flowering (outdoor grow), 2 gallons of soil in a 4 gallon pot. It's getting cooler outside & I need to bring it indoors.
My closet is a nice size. Can I use the LED or should I use the HPS? Afraid it may get too hot in there?
I can't cut any holes for exhaust. but I can put fans in the closet. Would that be enough for heat control?
 
see4

see4

Well-Known Member
A 600 HID will generate too much heat for a closet unless you can extract the heat. Recirculating the heat with some fans won't do the trick. You need to extract the heat.

How about you start with the LEDs and if you don't like the progress, move to the HIDs.
 
M

MrBD

Active Member
If you left the closet open during the 12 hours that the lights are on you could probably get away with fans. But a closet with no air exchange is going to heat up fast. I have two 43watt cfls in a closet and it gets over 85 in there with the door closed.
 
S

Smooooth

Member
see4 said:
A 600 HID will generate too much heat for a closet unless you can extract the heat. Recirculating the heat with some fans won't do the trick. You need to extract the heat.

How about you start with the LEDs and if you don't like the progress, move to the HIDs.
Click to expand...
About how far away or which shelf should I put the lights on?
Thinking about grabbing the plant from outside now
 
S

Smooooth

Member
MrBD said:
If you left the closet open during the 12 hours that the lights are on you could probably get away with fans. But a closet with no air exchange is going to heat up fast. I have two 43watt cfls in a closet and it gets over 85 in there with the door closed.
Click to expand...
That's a good idea. I'll just try for the LED atm & use the HPS when I start my autoflowers
 
see4

see4

Well-Known Member
Smooooth said:
About how far away or which shelf should I put the lights on?
Thinking about grabbing the plant from outside now
Click to expand...
If you go with the LEDs, depending on their lumen output, I'd put them anywhere between 18 and 24 inches away from your plants. And unlike HPS, maintain that distance rather than allowing the plants to grow into them.
 
see4

see4

Well-Known Member
But there are more experienced LED folks on this board who will probably give you better advice. I'm just giving you generalities.
 
S

Smooooth

Member
see4 said:
But there are more experienced LED folks on this board who will probably give you better advice. I'm just giving you generalities.
Click to expand...
It's okay. I'm just experimenting with hopes of a good outcome. I haven't gotten much feedback on my other posts so your input is greatly appreciated.

Here's what I have now IMAG1655.jpg

Seems to be a little further away than what you said. I'm just not sure how to get them lower yet
 
Freddie Millergogo

Freddie Millergogo

Well-Known Member
Smooooth said:
It's okay. I'm just experimenting with hopes of a good outcome. I haven't gotten much feedback on my other posts so your input is greatly appreciated.

Here's what I have now View attachment 3781114

Seems to be a little further away than what you said. I'm just not sure how to get them lower yet
Click to expand...
You have one of those 14 Watt LEDs. Get the plant much closer to the light. Those little lights are okay for vegging babies and even teens which is what you have but the plants will not grow much.

The light is WAY to far away from the plant. The poor little plant is barely hanging on. HID's will make the closet and oven. Get some whit Panda plastic to protect the walls and carpet too.

Anyone think he could use a T5 from flower to veg or will it get too hot too?
 
see4

see4

Well-Known Member
Smooooth said:
It's okay. I'm just experimenting with hopes of a good outcome. I haven't gotten much feedback on my other posts so your input is greatly appreciated.

Here's what I have now View attachment 3781114

Seems to be a little further away than what you said. I'm just not sure how to get them lower yet
Click to expand...
MrBD said:
Sometimes it's easier to raise the plants
Click to expand...
What he said.


Yea, just put a box underneath the pot. No pun intended.

And if Freddie Millergogo is right and that's a 14watt LED, you are much better off with a T5.

Honestly the best thing you can do with the 14 watt "grow" LEDs is take it out back and shoot it with a high powered rifle.
 
S

Smooooth

Member
The bulb I have is 600mh. Does that make any difference with heat at all?
I've read MH is best for vegetative state but will it be okay for flowering? Maybe paired with the Led?
 
M

MrBD

Active Member
You're still consuming a lot of power. Any light pushing 600watts is going to create a lot of heat. Try venting into the room but youll most likely either have to add an air conditioner to the room or leave a window open. Or run a vent to a window.

Can't emphasise enough that you're going to need to exchange that hot air with cooler air.
 
Chef420

Chef420

Well-Known Member
You should look into suspending your light somehow instead of having it shining through an IKEA shelf. Whatever your light puts out you're blocking a portion of it.
 
S

Smooooth

Member
MrBD said:
You're still consuming a lot of power. Any light pushing 600watts is going to create a lot of heat. Try venting into the room but youll most likely either have to add an air conditioner to the room or leave a window open. Or run a vent to a window.

Can't emphasise enough that you're going to need to exchange that hot air with cooler air.
Click to expand...
Would a diy ac suffice in the closet?
Trying to figure out my cheaper options
 
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