4 ms·
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
by blihp 5y ago
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.
- robotresearcher 5y agoA 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.
- hnuser123456 5y agoYou'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, ...