The product name says 670nm. But the description in this page says 620nm. What is the real wavelength it operates on?

Hi there, the Revive lamp is 670nm, the 620nm listed is a typo and has been submitted to be fixed. Thanks for letting us know!

is it 670 nm at all three light levels? low medium and high

Thank you for your interest in our products. 670 nm refers to the wavelength. This does not change within the 3 brightness levels of the lamp. The color or hue of light depends on its wavelength, the distance between the peaks of its waves. The brightness of light is related to intensity or the amount of light an object emits or reflects. Brightness depends on light wave amplitude, the height of light waves. I hope this answers your question, but please let us know if you need anything further.

Please also check the photo of the box that was shared by the reviewer named Gnemik. In the box, it says 620nm. Is that also a typo?

Hi again, That was not a typo, but was of the prior version of our lamp.

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🌙 Light up your nights, sleep like you mean it.

UNIVERSAL CALM FOR ALL AGES - Perfect for light-sensitive adults, kids, and anyone craving a peaceful bedtime ritual.
SUNSET INSPIRED 670 NM RED LIGHT - Harness the calming power of natural twilight to reset your circadian rhythm effortlessly.
TRUSTED SCIENCE PROVEN RESULTS - Backed by a decade of research from wellness innovators dedicated to real sleep solutions.
SLEEP BOOSTING MELATONIN SUPPORT - Eliminate disruptive blue light and fall asleep faster with scientifically backed red light therapy.
EFFORTLESS SETUP INSTANT RELAXATION - Plug in and unwind—no complicated installation or batteries required.

The Revive 670nm Red Light Sleep Therapy Lamp by Gamma uses low-intensity red light to mimic natural sunset tones, promoting melatonin production and supporting your body’s circadian rhythm. Designed for easy plug-and-play use without batteries, it creates a cozy, blue-light-free environment ideal for adults and children alike, helping you fall asleep faster and enjoy deeper, more restorative sleep. Developed by a science-driven brand with over 10 years of research, this polished, compact lamp is a must-have for anyone serious about upgrading their nighttime routine.

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