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Now that I've lost two seedlings in a row, I think it's time to take a long, hard look at getting a better handle on the environmental conditions in the tent. If it's not bad genetics (two in a row? not too likely, I would think), then its the tent.

So the first thing I have to fix is the temperature. I am currently using two Viparspectra v600 lights in a 2'x4'x5' tent. With my fan at about 2/3 of max speed, it is a challenge to keep the tent below 90F. And because it is in the same room with all my electronic/computing/radio gear, it's a challenge to keep the room below 80F.

While looking at COB lighting, I realized the difference in heat dissipation is incredible. For clarity, let's do the math...

Assuming an efficiency of the Viparspectra is about 20% at 260 watts, with two units that is 416 watts of power dissipated as heat. Now a COB that is more than enough for each plant will probably draw only 60 watts, and at 50% efficiency, that equates to 60 watts of dissipated heat for two.

That was a pretty remarkable realization.

This has other advantages too, besides the obvious savings in electricity costs. Namely, the dramatic reduction in heat dissipation means I can run the fan slower. This presents two more advantages.. One, the humidifier wont have to work as hard (meaning use less water, sponge will last longer) in order to maintain the 50% RH i want. Two, the reduction in airflow will increase the efficiency of the carbon odor filter.

This is pretty much the text-book definition of a no-brainer.
 
Now that I've lost two seedlings in a row, I think it's time to take a long, hard look at getting a better handle on the environmental conditions in the tent. If it's not bad genetics (two in a row? not too likely, I would think), then its the tent.

So the first thing I have to fix is the temperature. I am currently using two Viparspectra v600 lights in a 2'x4'x5' tent. With my fan at about 2/3 of max speed, it is a challenge to keep the tent below 90F. And because it is in the same room with all my electronic/computing/radio gear, it's a challenge to keep the room below 80F.

While looking at COB lighting, I realized the difference in heat dissipation is incredible. For clarity, let's do the math...

Assuming an efficiency of the Viparspectra is about 20% at 260 watts, with two units that is 416 watts of power dissipated as heat. Now a COB that is more than enough for each plant will probably draw only 60 watts, and at 50% efficiency, that equates to 60 watts of dissipated heat for two.

That was a pretty remarkable realization.

This has other advantages too, besides the obvious savings in electricity costs. Namely, the dramatic reduction in heat dissipation means I can run the fan slower. This presents two more advantages.. One, the humidifier wont have to work as hard (meaning use less water, sponge will last longer) in order to maintain the 50% RH i want. Two, the reduction in airflow will increase the efficiency of the carbon odor filter.

This is pretty much the text-book definition of a no-brainer.

Forgot to mention, I can also raise the light about 6 inches higher since its just a single ratcheted hanger.
 
That's the endorsement that just became the proverbial icing on the cake.

Ive been running an arizer Xtreme for several years hard....its efficiency is excellent. A chronic toker could save the cost of the product(under $200US) in a half year easily using a vape versus joints.
Highest recommendation from me on the arizer xtreme!
 
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