Diablo vs 288.

[jdm61]

So how much "hotter" is a single Diablo with the 150 driver compared to a 288 with the 120?

 

[Mañ'O'Green]

A watt is a watt is a watt of heat. Eventually all of the electrical energy fed to an LED will become heat, Waste heat, photons absorbed by the walls and other surfaces and then those absorbed by the plant. So if you run both lights at 600 watts the heat will be the same.

 

[PotDaddy]

A watt is a watt is a watt of heat. Eventually all of the electrical energy fed to an LED will become heat, Waste heat, photons absorbed by the walls and other surfaces and then those absorbed by the plant. So if you run both lights at 600 watts the heat will be the same.

What He said!! I like to argue but not with @Mañ'O'Green he knows his stuff!

 

[Mañ'O'Green]

What He said!! I like to argue but not with @Mañ'O'Green he knows his stuff!

Before I came over to AFN on another board we used to have battles over this concept. I set up an experiment with an HID and a LED fixture with the ballasts in the tent and I ran each of them on a Watt meter at exactly 250 watts. After 24 hours the tent was only .1 degree different in temperature betweeen the two lights. A lot of guys still did not believe me .

 

[Les @HLG]

HID lights produce infrared, which heats your plants increasing leaf temperature, LED does not, this is a benefit of LED, no infrared. Less of the heat generated is directed at your plants, etc. What's really going on that makes LED tech seem cooler is the thermodynamics involved are different. With HID, you have a point source of concentrated heat plus IR, verses a heat source ( the driver and heatsink ) that produces heat across a wider area and at a lower temperature than a point source. It is released to the air more quickly, making extraction easier. This really needs a more more in depth explanation as there is more going on here than we realize.

Before I came over to AFN on another board we used to have battles over this concept. I set up an experiment with an HID and a LED fixture with the ballasts in the tent and I ran each of them on a Watt meter at exactly 250 watts. After 24 hours the tent was only .1 degree different in temperature betweeen the two lights. A lot of guys still did not believe me .

 

[jdm61]

I’m sorry. I thought that by putting hotter in quotes, folks would understand that I meant some thing other than actual heat. Didn’t know I was on a fundamentalist stoner forum where everything is taken literally. LOL. I meant how much more powerful is the Diablo compared to a 288?

 

[Mañ'O'Green]

I’m sorry. I thought that by putting hotter in quotes, folks would understand that I meant some thing other than actual heat. Didn’t know I was on a fundamentalist stoner forum where everything is taken literally. LOL. I meant how much more powerful is the Diablo compared to a 288?

Say what?

 

[Les @HLG]

We do have a tendency towards technical accuracy when possible lol! Some of us are diehard tech geeks!

I’m sorry. I thought that by putting hotter in quotes, folks would understand that I meant some thing other than actual heat. Didn’t know I was on a fundamentalist stoner forum where everything is taken literally. LOL. I meant how much more powerful is the Diablo compared to a 288?

 

[jdm61]

So back to the original question rephrased to avoid confusion. How does the PPFD output of single Diablo board at 150w compare a single Rspec 288 at 120w?

 

[Les @HLG]

A single Diablo has as many LEDs as 2.25 QB288's. So a single Diablo's PPFD is about what 2 1/4 QB 288 put out at 75 watts per board. I'd estimate a single Diablo to have a PPFD of around 400

So back to the original question rephrased to avoid confusion. How does the PPFD output of single Diablo board at 150w compare a single Rspec 288 at 120w?