Sixteen emitters, two
wavelengths, one rating.
Most red light products give you a wavelength and stop. Here is the whole specification, and what each number means in a bathroom.
Most red light products tell you a wavelength and stop there. That number on its own does not tell you very much — not how many emitters, not how tightly the beam is focused, not whether the thing survives being rained on.
So here is the entire specification, and what each number actually means in a bathroom.
The numbers
Beam angle is 25 to 30 degrees. Power draw is 5W. The housing is 5.6 by 5.6 by 0.9 inches and it weighs 9.2 ounces — roughly a phone and a half.
What IP65 actually means
The two digits are separate tests. The 6 is dust: fully sealed, nothing gets in. The 5 is water: protected against low-pressure jets from any angle.
A shower head is a low-pressure jet. That is the whole reason this rating was the target rather than something lower — the panel is meant to run in the water rather than on the wall next to it.
Running shower — yes
Water hitting it directly from any direction is exactly what IP65 is specified for.
Steam and humidity — yes
The housing is sealed against ingress, and the charging port has its own cover.
Submerging it — no
IP65 does not cover immersion. It does not go in a bath, a sink or a pool.
Charging while wet — no
Charge it dry and outside the shower, on a standard 5V adapter, with the port cover open.
Why the suction cup holds
A suction cup works by removing the air between the cup and the surface, so atmospheric pressure holds it in place. That only happens on a surface that is smooth, clean and non-porous.
Glass, glazed tile and polished stone all qualify. Grout lines, textured stone and anything porous do not — air leaks back in through the surface and the seal fails over an hour or two.
Wipe the spot dry first, press the cup flat, close the locking lever, then tug it once before you hang the panel on it. That last step takes a second and is the whole difference between it holding and not.
Battery, charging and how long it lasts
A 3.7V, 3,000 mAh cell gives up to two hours of total run time. At the ten minute setting that is roughly twelve sessions between charges. It charges over USB-C on any standard 5V adapter.
The cell is rated for 350 charge cycles at 80% capacity, which at three sessions a week is a long time before you would notice a difference. Store it dry, between 32°F and 104°F.
The lamp
16 LED panel, 660nm and 850nm, IP65
Suction cup mount
Heavy-duty, with a locking lever. No tools
USB-C charging cable
Works with any standard 5V adapter
Protective eyewear
Wear it whenever you face the light directly
What we are not going to tell you.
We are not going to put a percentage on this page, or show you a before and after, or tell you what it will do for your skin. Plenty of people will. We would rather publish the specification and let you decide.
Sixteen emitters, two wavelengths, a 25 to 30 degree beam, IP65, and a timer that stops on its own. That is what you are buying.
The full specification
Sixteen lenses, six inches away
660nm + 850nm. IP65. 10, 15, 20 minutes.
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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.
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.
