Re:Russia to legalize software piracy
by blihp on Monday March 07, 2022 @11:20AM
(#30589626)
I have no idea what the percentages are but based on a lifetime of anecdotal experience esp with incandescent, I'd bet you're wrong. Being across the room from a light bulb will warm you a bit, but nothing like proximity to the bulb, especially when you're above it.
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Re:Russia to legalize software piracy
by hnuser123456 on Monday March 07, 2022 @01:09PM
(#30591222)
You're also being hit with more IR when you're closer. That being said, getting the same amount of light from an LED seems to only take 10% as much power, but they're also probably putting out much less IR, but LEDs still heat up a little, ...
Re:Russia to legalize software piracy
by robotresearcher on Monday March 07, 2022 @12:56PM
(#30591057)
A bare lightbulb is almost an anisotropic point source. You can put a reflector around it to target the IR in some direction. Its energy efficiency at the bulb is the same, i.e. nearly perfect. The energy delivered to target is different.