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Dimmer Switch for Halogen or Incandescent Lighting

Use a dimmer switch with incandescent or halogen bulbs; dimming increases infrared output relative to visible brightness, extends bulb life, and can reduce circadian disruption in the evening.

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“Put a dimmer switch on the incandescent light bulb. Even though it appears dim to you, still producing loads of infrared light because it's getting warm... And particularly if you can afford to dim it, it'll last almost forever.”

huberman · Dr. Glen Jeffery: Using Red Light to Improve Your Health & the Harmful Effects of LEDs · Dec 1, 2025 · 1:52:35 · open ↗

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