Phosphor-converted amber LED

Blue-pumped LED that can leak short wavelengths

2 episodes mention this

Episodes

#5028: What 670nm Red Light Actually Does for Sleep

670nm is a badge, not a mechanism. Here's how to actually shop for a sleep light.

Sep 4
#5027: The 670nm Sleep Light Myth: What That Number Really Means

That "670nm" on your sleep light isn't about melatonin at all. It's about copper atoms in your mitochondria — and the dose is probably fictional.

Sep 4