Behind the build

We stopped asking people to
find the time.

Every red light panel we looked at wanted twenty spare minutes and a corner of a room. So we put one in the only ten minutes nobody skips.

By SaunaBox · 6 min read

Why We Built a Red Light That Lives in the Shower

Summary

Why SaunaBox built a red light panel for the shower rather than another floor-standing unit: the four engineering decisions that took the longest, why IP65 matters more than splash-resistance, why it mounts with suction instead of screws, and why the panel comes off the wall. Specification and design reasoning only — no health claims.

Every red light panel we looked at wanted the same two things from you: twenty spare minutes and a corner of a room. Most people have neither. So the panel gets used for a fortnight, then it lives behind a door.

We kept coming back to the same question. Not how do we make a better panel — how do we put one somewhere a person is already standing still, warm, and alone, every single day.

The room nobody argues with

The shower is the one part of the day that already survives everything else. Nobody negotiates it off the calendar. It happens whether the week went well or not, and for most women it is the only ten minutes with a door that locks.

That was the whole insight. Put the light where the habit already is and you stop asking anyone to build a new one.

Which sounded simple, and then turned into eighteen months of arguments about waterproofing.

Four decisions that took the longest

Everything on this thing exists because a shower is a genuinely hostile place to put electronics, and because we did not want anyone calling a tradesman to own one.

What we argued about

IP65, not splash-resistant

Splash-resistant means it survives being near water. IP65 means it survives water jets from any direction — which is what a shower head is. It runs in the water, not beside it.

Suction, not screws

Drilling into tile is permanent, and most people rent. A heavy-duty suction cup with a locking lever holds on glass, tile and polished stone, and comes off without a trace.

No cable

A cord across a wet floor is a bad idea and a worse look. It runs off a 3,000 mAh battery and charges over USB-C, dry, outside the shower.

It comes off the wall

The panel lifts off the bracket magnetically, so it works on the edge of a bath or a windowsill. It is not bolted to one room.

Why we built it for women first

Red light has been sold to men as recovery equipment for a decade — panels the size of a door, in a garage, next to the weights. That framing works if you already own a home gym.

The version we wanted did not look like equipment at all. It is the size of a hand, matte black, and it lives on the glass. It goes up in about five seconds, it does not need explaining to a landlord, and it moves house in a bag.

“The best routine is the one that does not ask you for extra time. Everything else is optional.”

SaunaBox product team

What it is, plainly.

Sixteen LEDs in a four by four grid, running 660nm red and 850nm near-infrared, behind polished reflector optics at a 25 to 30 degree beam. IP65. A suction mount and a magnetic bracket. One button, three timer lengths, and it switches itself off at the end.

We are not going to tell you what it will do for you. We will tell you exactly what is in it, and where to stand.

Ten minutes you already have

Built for the shower you already take

660nm and 850nm. IP65. No drilling.

Shop SaunaBox

The SaunaBox lineup

660nm red and 850nm near-infrared. Built in.

New

Shower Lamp

16 LEDs at 660nm and 850nm. IP65 rated, suction-mounted to glass or tile, cordless, with 10, 15 and 20 minute timers.

View the Shower Lamp

Pulse PRO

Portable infrared sauna with 320 LEDs across 660nm and 850nm built into the tent. Folds flat, no tools.

View Pulse PRO

Solara

Full-spectrum infrared cabin in Canadian Hemlock. Runs on a standard outlet and fits in a corner.

View Solara

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Specifications

Every figure on this page — 16 LEDs, 660nm and 850nm, a 25 to 30 degree beam, 5W, IP65, 142 × 142 × 23 mm (5.6 × 5.6 × 0.9 in), 0.26 kg (9.2 oz), a 3.7V 3,000 mAh cell rated for 350 charge cycles at 80% capacity, up to 2 hours of run time, and 10 / 15 / 20 minute timers — is taken from the SaunaBox Shower Lamp product manual. No health outcome is claimed anywhere on this page, so no clinical literature is cited.

Disclaimer

This article describes how the SaunaBox Shower Lamp is built and how to use it. It is a wellness accessory, not a medical device, and is not intended to diagnose, treat, cure, prevent or mitigate any disease or condition. No health outcome is claimed or implied. Wear the included protective eyewear if you face the light directly and do not look into the diodes. Speak to a qualified healthcare professional before use if you are pregnant, managing a medical condition, or taking photosensitising medication.

White Glove Installation