This tool is donation based and free. 🙏 We're looking for donations to keep it running — $360/year covers our server costs.

$18 of $360 · 5%
Donate
This fact check is over a week old. Newer information may be available.

Incandescent light bulbs emit infrared light – True

Question asked:

“Incandescent light bulbs emit infrared light.”
True
Confidence: High Checked on October 9, 2026

Summary

Incandescent bulbs produce light by heating a filament to high temperatures, which results in thermal radiation that includes a large portion of infrared wavelengths. Consequently, a significant amount of the energy they consume is emitted as infrared radiation alongside visible light.

Recheck this fact Runs a fresh check with up-to-date sources

Sources 59 searched

pmc.ncbi.nlm.nih.gov
energy.gov
  • Debunking Myths about Phasing Out the Incandescent Lightbulb | Department of Energy

    In recent years, the ruling to phase out incandescent lightbulbs has sparked heated debates and generated a fair share of misinformation. Let's delve into the most common myths surrounding the ban and set the record straight. ... Congress as part of the bipartisan Energy Independence and Security Act of 2007 (EISA) directed DOE to review the standards for the most common light bulbs to see if efficiency improvements are warranted.

michigan.gov
  • Debunking myths about phasing out the incandescent light bulb

    Reality: The US government is not banning all light bulbs; it's just setting a minimum efficiency standard. The bipartisan Energy Independence and Security Act of 2007 (EISA) established minimum efficiency standards for light bulbs that the ...

datalabs.cfa.harvard.edu
  • Temperature: Incandescent Bulb | Spectrum Lab

    An incandescent light bulb is a type of bulb that generates light by running electricity through a very thin metal filament, causing it to heat up and emit thermal radiation. Spectrum Tool.

people.wou.edu
  • Lab Time

    First: Last: Any Department Accounting & Business Services Admissions Office Advancement & Foundation Advancement & WOU Foundation Anthropology Army ROTC Art Athletics Biology Bookstore Budget Office Business/Economics Division Campus Dining Campus Public Safety Campus Recreation Capital Planning ...

en.wikipedia.org
  • Infrared lamp - Wikipedia

    Infrared lamp sources are used ... using its infrared absorption characteristics. IR radiant energy emitted by lamps cover a wide spectrum of wavelengths, ranging from 0.7 μm (micrometers) to a longer wavelength of 400 μm. Incandescent light bulbs use a tungsten filament ...

  • Incandescent light bulb - Wikipedia

    Less than 5% of the power consumed by a typical tungsten incandescent light bulb is converted into visible light, with most of the rest being emitted as invisible infrared radiation. Some applications make use of the emitted infrared radiation, such as heat lamps in incubators, lava lamps, ...

  • Incandescent light bulb ban - Wikipedia

    The initial Europe wide ban only ... incandescent bulbs, so did not affect any bulbs with reflective surfaces (e.g. spotlights and halogen down lighters) or special purpose bulbs including those used in devices such as household appliances, traffic lights, infrared lamps and ...

spie.org
  • A cool light bulb

    The law describes how a body capable ... in an incandescent bulb is due to the fact that it emits both infrared and visible light at temperatures between 2000 and 3000K....

This fact check is free and donation-based. $1 powers ~30 fact-checks.

Donate $1 to support fact-checking

Check another fact