Light

Does the Tuo bulb work? We tested the flicker and spectral output of this circadian light to see if it’s more effective than a traditional SAD lamp.

Is the Sky Portal Mini worth $250? We tested the flicker, spectral output, and battery life of this dual-mode SAD lamp to see if it’s the ultimate travel companion.

We tested the Bedtime Bulb v2 with a lab-grade spectrometer. See the exact blue light levels, flicker data, and why this hybrid bulb might save your sleep.

Looking for maximum lux? We tested NLT’s entire lineup. See which models hit 10,000 lux and how they compare to modern flicker-free alternatives.

Enhance your sleep and energy? We tested VivaRays’ blue light blocking and UV transmission. See how they compare to standard prescription glasses inside.

We tested NIRA A19 & BR30 bulbs. Our lab data exposes the truth about their “flicker-free” claims, spectrum, and lifespan. Read before you buy.

Why does this SAD lamp remove blue light? Our lab tests reveal the science behind the Sky Portal’s unique spectrum and evening amber mode.

Looking for a flicker-free SAD lamp? We tested 5 Beurer models. Discover why the TL95’s “SunLike” diodes make it the superior choice for sleep & energy.

We tested the SOLshine PhotoVites & bioBulb. See our spectral graphs, infrared output, and why this full-spectrum lamp outperforms standard SAD lights.

Can a SAD lamp heal with infrared? Our review of the BlockBlueLight Full Spectrum lamp reveals its unique “SunLike” spectrum and true circadian power.