Red-light wavelengths explained for shoppers
Wavelength lists can make one product look more sophisticated than another. They are useful information, but they are not a quality score by themselves.
What the number describes
A wavelength is the position of light in the electromagnetic spectrum, expressed in nanometers (nm). Consumer devices commonly advertise visible red wavelengths around the 600s and near-infrared wavelengths in the 800s.
Why “more wavelengths” is not automatically better
A seven-wavelength panel may offer more modes than a two-wavelength device, but that does not answer whether the panel fits your space, whether the output is delivered evenly, whether the controls are convenient or whether you need those extra modes.
Look at the whole specification context
- What format is the device?
- At what distance is any intensity figure measured?
- Can wavelength groups be controlled separately?
- How large is the illuminated area?
- Does the manufacturer explain the measurement conditions?
How SelfVeil reports these numbers
When a wavelength, LED count or irradiance figure comes from the manufacturer, we treat it as a published manufacturer specification unless independent test data is available. We do not convert those figures into medical promises.
Do not pay more simply because a product page contains a longer wavelength list. Pay for a format, coverage level and control set that you will actually use.
This page explains product specifications for shopping purposes and is not medical advice.