Quote Originally Posted by khyberkitsune
There's a *MASSIVE* difference between a 1000w LED panel, which does NOT have a glass casing that reaches 1000+F while in operation nor does it have burning electrodes, and a 1000w HID, which DOES. There's a difference between the heat output from a light that uses an open electrical arc (fluorescent, HID) and a light that uses quantum wells.
Have you ever put both 1000w lamps in a sealed room with idential cooling systems, confirmed they both actually draw the same power (using a kill-a-watt or similar device) and then measured significantly different temperatures in that room?

I doubt it... but if you have, then can you explain where that equal amount of electrical energy goes if not into heat? (I know some people like to say "light" but that's not a good answer, since it's a sealed room the light cannot radiate away... it must bounce around until it is eventually converted to heat)

Quote Originally Posted by khyberkitsune
I think you're also forgetting that entropy differs in different electrical system configurations. That in itself is a basic tenant of thermodynamics.
Entropy is one-directional in every configuration. Whether that heat comes from a metal heatsink, a glass barrier, or the walls warmed by radiation, it's all still heat captured in the room.

Quote Originally Posted by Weezard
"Anyone who claims they have seen a significant temperature difference with the same wattage is either mis-measuring, or not using similar wattage. "

I have a fan drawing the heat from the 'sink at the back of the lamp and I pump it out of the room before the room even knows it's there.
Yes you have a better cooling system in setup "A" than you have in setup "B". However, if the same # of watts had to be exhausted by exactly the same system in both setups, the temperature would be the same. Yours is not an apples-to-apples comparison.

So your LED setup permits you the luxury of a more efficient cooling system, a legitimate advantage to that type of lighting. apples-to-pinecones comparison, the apples are tastier, i agree.

The original claim was that 300w induction raises room temperature less than 300w HID. I don't believe it's so unless they're unequal setups. Is there something about induction lighting that allows you to more easily exaust a portion of the generated heat? If so, that's great news. That's why I originally asked the question of how someone got a 300w induction light to warm the room less than 300w HID.