RŪBI was made for the part of the day when the room should begin to feel different.

As evening gives way to night, bright overhead lights, glowing screens, and ordinary white lamps can keep a space feeling more active than restful. RŪBI offers a softer alternative: a dedicated red light lamp for sleep, bedtime, and the quiet routines that happen before it.

Pure 670nm Red Light

Red light behaves differently from the light most homes run on. It sits in a narrow part of the visible spectrum, appears warmer and softer than common indoor lighting, and produces less visual contrast and glare than broad-spectrum white light. A room lit with it simply feels more subdued.

RŪBI emits that light and nothing else. 670 nanometers, a narrow wavelength chosen for its clarity and consistency, with no blue or green wavelengths in it at all.

From a Faint Ember to Full Brightness

Press and hold the touch sensor and the light glides smoothly from the faintest ember all the way to a bright, vivid red, settling exactly where you want it. There are no preset levels and no automatic shut-off, so you can leave it on for ten minutes or through the night.

The built-in rechargeable battery lets RŪBI move from a living room table to a bedroom nightstand with ease. Or leave it plugged in where you use it most.

Made to Live in the Open

A premium glass housing on a wood-style base, not a plastic shell. RŪBI was designed to look like furniture rather than a piece of equipment, an intentional, aesthetically considered object that fits naturally into any decor without compromising style.

Who It's For

Light sleepers. Late-shift workers. Anyone who reads, journals, meditates, or stretches in the evening. Anyone tired of a bedroom lit like an office.

What's Included

• RŪBI red light lamp (glass housing, wood-style base)
• USB-A to USB-C charging cable
• Printed quick-start guide

Specs & Details

• Wavelength: 670nm narrow-band red, free of blue and green light
• Brightness: fully adjustable 1–100% via touch sensor, press and hold to dim
• Power: 3W rated · DC 5V input
• Battery: 2000mAh rechargeable lithium, USB-C charging, approx. 4 hours to full
• Also runs plugged in
• Indicator: flashing red = low charge · solid red = charging · solid green = fully charged
• Weight: 511g (about 1.1 lbs)
• Materials: glass housing, wood-style base

Note: USB-C to USB-C and fast-charging cables are often not compatible. Use the included USB-A to USB-C cable or an equivalent.

The Pure Tone Promise

Try RŪBI for 60 days, risk-free. If you don't love the difference it makes in your evenings, send it back for a full refund, no questions asked.

Designed in Joshua Tree, California

Pure Tone Therapy is a small, family-run company. We build dedicated single-purpose devices that do one job well and then stay out of your way. No apps, no accounts, no subscriptions, nothing to pair or update. Every product is our own design, and every order is packed and shipped by our family. When you write to us, a real person writes back. - Dhyana D.

Pairs With TŌNEM

RŪBI works with light. TŌNEM works with sound: a dedicated speaker preloaded with all nine Solfeggio frequencies plus 432 Hz, and a matching music track tuned to each one. Same philosophy, different sense. You can also get both together in the Total Frequency Reset Kit.

👉 Please note: If you're planning to send this gift to someone else, please make sure that the "SHIP TO" address is correct.