What adds more heat to your room? Cooltubes vs LEDs.

Pantar · Mar 31, 2015

Hello,
Im looking to add 1200W to my room (20m3) and i have high temps already, a mini split is not an option, so im pretty much left to play with ventilation and CO2.
What will add less heat to the room, a couple DYI LED panels or a couple cooltubes (total 1200W)? Im not venting the heat directly outside, it goes through another room first.

Im running a room with 400HPS+600LED for flower and 250HPS for veg (inside a closet).
My current temperatures ventilating 15 mins every hour range from 26 to 28 ºC. I use CO2 enrichment 900-1500PPM.
Here is a little picture of part of the room:
http://i.imgur.com/ftzS0T5.jpg
There are over 10 different strains there, no training. The ones on the left are 19 days into flower, the ones on the right are 2 days into flower.

Thanks!

deadgro · Mar 31, 2015

How much light do you want to add? How many plants?

Pantar · Mar 31, 2015

"Im looking to add 1200W to my room (20m3)"
So it would be 2x600 HPS or the equivalent in DIY LEDs.

deadgro · Mar 31, 2015

Pantar said:
"Im looking to add 1200W to my room (20m3)"
So it would be 2x600 HPS or the equivalent in DIY LEDs.

There's really no simple equivalent. How many plants? What's the size of the space you want to cover?

hyroot · Mar 31, 2015

its about efficiency. The more efficient the light the less heat there is. So it depends on type of led. And type of hid. And grow area.

need more info if you want a specific answer.

Pantar · Mar 31, 2015

The grow area is 2,4m2 and the grow room volume is 20m3. The number of plants will be around 60 (SOG). Im not sure how much the plant numbers affect temperature compared to light efficiency though. I can check efficiency on the datasheets, but when you put into consideration you are ventilating hot air from the bulb outside the room with the cooltube then i dont know how to compare HPS and LED. The type of HPS or LED is what im trying to find out, enough cxa3070 or 3090 to cover 2,4m2 with a normal priced driver compared to average 2x600W HPS bulbs in cooltubes venting hot air outside.

Thanks!

markymark88 · Mar 31, 2015

60 plants SOG is going to be a pain in the ass to water unless you are doing some type of hydro imo. But you are looking for light help. I like LEDs but the penetration sucks. I have 400 hps and 400 led I like the mixed spectrum. My recommendation would be a 600 hps and diy 600 led. Best of both worlds.

churchhaze · Mar 31, 2015

Pantar said:
The grow area is 2,4m2 and the grow room volume is 20m3. The number of plants will be around 60 (SOG). Im not sure how much the plant numbers affect temperature compared to light efficiency though. I can check efficiency on the datasheets, but when you put into consideration you are ventilating hot air from the bulb outside the room with the cooltube then i dont know how to compare HPS and LED. The type of HPS or LED is what im trying to find out, enough cxa3070 or 3090 to cover 2,4m2 with a normal priced driver compared to average 2x600W HPS bulbs in cooltubes venting hot air outside.

Thanks!

Top bin cxa3070 or cxb3070 will crush hps in terms of efficiency, both generic, and DE..

To answer more specifically, the amount of heat you will have to deal with is almost equal to the watts dissipated regardless of whether it's HPS or LED. 400W of HPS or 400W of LED dissipated ultimately means you have 400W of heat being generated. Even if some of it becomes light first, most of the light will be absorbed and become heat.

Pantar · Mar 31, 2015

churchhaze said:
Top bin cxa3070 or cxb3070 will crush hps in terms of efficiency, both generic, and DE..

To answer more specifically, the amount of heat you will have to deal with is almost equal to the watts dissipated regardless of whether it's HPS or LED. 400W of HPS or 400W of LED dissipated ultimately means you have 400W of heat being generated. Even if some of it becomes light first, most of the light will be absorbed and become heat.

So, ventilating the hot air from the bulb is negligible compared to the efficiency of the LEDs (and drivers).
Do you have any recomendations for 1mx1,20m or 1mx1m DYI LED setup? Do you recommend 3070 or 3090?

Thanks!

PS: For FLORATION.

churchhaze · Apr 1, 2015

Pantar said:
So, ventilating the hot air from the bulb is negligible compared to the efficiency of the LEDs (and drivers).
Do you have any recomendations for 1mx1,20m or 1mx1m DYI LED setup? Do you recommend 3070 or 3090?

Thanks!

PS: For FLORATION.

You might want to ask that same question in the LED section.

Imo, the cxa/cxb 3590 is great for high profile, HPS replacement, type of configurations. 3070 is good for mid to low profile, and 2530 for low profile configs.

It's up to you whether you want to design a high profile (fewer but more powerful cobs higher up), or a low profile setup (more, less powerful cobs, closer to the canopy). That comes down to whether you have tall ceilings, or a short tent, or a tiny clone box.

Pantar · Apr 2, 2015

You rock, im going to read some more stuff before spamming more questions, thanks!

What adds more heat to your room? Cooltubes vs LEDs.

Pantar

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deadgro

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hyroot

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