Contact
Get in touch
A question about a light, a mistake we should fix, or a product you want us to test? Write to either of us. Your message goes straight to that person’s inbox.
Elsewhere
Our databases
347products
measured
Counts update as we test
Spectrum, lux, flicker and more, measured on our own gear. The data is free to use.
- SAD Lamps Tested for m-EDI, lux, glare and spectrum 58lamps tested
- Blue Blockers Spectral transmission data for every lens 64glasses tested
- Smart Lights Circadian-tunable lights for home setups 119lights tested
- Light Bulbs CRI, R9, color temp and flicker, every bulb measured 88bulbs tested
- Night Oximeters Overnight oximeters, filtered and sorted 18oximeters tested
Our reviews
66lab-tested
reviews
Hands-on best-of picks, backed by our own measurements.
See all reviews- SAD Lamps 12 reviews
- Pulse Oximeters 12 reviews
- Circadian Lamps 8 reviews
- Sunrise Alarms 8 reviews
- Light Therapy Glasses 7 reviews
- Light Bulbs 4 reviews
- Breathing Aids 4 reviews
- Blue Blockers 3 reviews
- Circadian Rhythm How light sets your body clock
- Blue Light What it does after dark
- Full-Spectrum Lighting Indoor light closer to daylight
- Vitamin D Sun, UVB lamps and levels
- Sleep Environment Light, sound and air in the bedroom
- Sleep Position Back, side and zero gravity
- Breathing Nasal breathing at night
- Books The reading list behind the site