Your light bulbs are
messing with your brain.
Standard LEDs blast blue wavelengths 24/7, suppressing melatonin and disrupting your circadian rhythm. We test circadian lighting products so you can fix it.
Best Circadian Light Bulbs (2026): Full Comparison
We compared every circadian bulb on the market — OIO, TUO, Bon Charge, NorbSMART, Hooga, and more. One clear winner emerged.
Korrus OIO Review: The Circadian Bulb Nobody Knows About
500+ patents, a Nobel laureate co-founder, and 68% more melatonin than standard LEDs. So why has almost no one heard of it?
How Light Wrecks Your Sleep (And What Actually Fixes It)
The science behind why your bedroom lighting matters more than your mattress — and the simple fix most people overlook.
TUO vs OIO: Which Circadian Smart Bulb Is Actually Worth It?
The two most advanced circadian bulbs on the market, compared on specs, science, and real-world experience.
How to Set Up Circadian Lighting in Your Home
The room-by-room, hour-by-hour guide to fixing your home lighting. Three budget tiers from $30 to $300.
Why Your Philips Hue Isn't Actually Circadian
Color temperature is not the same as spectral engineering. Here's why the world's most popular smart bulb falls short.
5 Lighting Mistakes That Are Destroying Your Sleep
You've probably made at least three of these. The biggest one isn't your phone screen.
Best Lighting for a Baby Nursery: A Circadian Approach
Your nursery lighting affects how fast your baby develops a sleep schedule. Here's what the science says to do.
Home Office Lighting for Focus and Better Sleep
Your WFH lighting is probably wrong in both directions — too dim in the morning, too blue at night.
Circadian Lighting for Jet Lag: Reset Your Clock Faster
Strategic light timing can shift your circadian clock 1–2 hours per day. Here's the protocol.
OIO + Apple Home: Complete Setup Guide
How to integrate OIO's circadian lighting with Apple Home, Focus modes, and Siri.
SAD and Lighting: What Actually Helps
Seasonal depression is a circadian problem. Light therapy is half the solution — here's the other half.
What Is Melanopic Lux?
The metric that actually measures how light affects your circadian system. Most people have never heard of it.
Is Your Lighting Wrecking Your Sleep?
5 questions, 60 seconds. Find out how your current setup scores and what to fix.
What we do
Circadian Lighting Lab reviews and compares circadian lighting products based on published science, real-world testing, and honest evaluation.
The lighting industry is full of vague wellness claims. We cut through the noise and tell you what actually works, what doesn't, and what's worth your money.