Quote Originally Posted by vannewb
"the point being" that 300w of electrical energy doesn't just disapear. Once it's put into a room, it's coming out in some form or another. In a SEALED room it obviously cannot leave as light energy.

So what do you think happens with all that light you're shining in the sealed room? It bounces around a bunch and is eventually absorbed by walls and items as heat energy. (and if you have plants, a negligible amount of chemical also).

At this point the question that people claiming "300w induction lamps will heat up a room less than 300w HID" are unwilling (unable?) to answer is where does the electrical energy from HID lamp end up if not, eventually, heat energy?

(p.s. induction lamps have a LOWER lumens/watt efficiency than HID lamps, which implies even if you were able to radiate away the light energy, it would still result in more heat than HID)
I've already answered this. Maybe not implicitly but it has been answered.

Period, most of the energy in HID is wasted as heat. Ballast or bulb, those are your two main loss areas. Induction lamps do a better job of mitigating this with their construction and due to the fact you don't have burning electrodes.

In an induction lamp, it's lost as higher-band EM radiation and not heat, in a typical fluorescent or HID, you have burning electrodes.
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