Understanding Irradiance and Wavelength: A Guide to Light Therapy Specifications

I. Why Coverage Matters

When comparing full-body light panels, coverage is one of the first things to consider. A larger panel, or a system with panels on more than one side, lights more of the body at once and can make sessions simpler. Manufacturers describe coverage through panel dimensions, LED count and beam angle, so these figures are worth comparing side by side.

II. Wavelength and Irradiance

Most home systems combine red wavelengths (commonly around 630 to 660 nm) with near-infrared wavelengths (commonly around 810 to 850 nm). Irradiance, usually expressed in mW/cm² at a stated distance, describes how much light reaches a surface. A clearly documented irradiance chart, measured at specific distances, is a better guide than a single headline number. Research into light therapy is ongoing, and results from clinical studies do not mean any particular home device will produce the same effect.

III. Planning for Your Home

Bringing a light system into a residence means thinking about placement, power supply, ventilation and how the piece will look in the room. Look for recognized electrical safety listings, clear manufacturer instructions for session length, distance and eye protection, and documented warranty terms. Our concierge team is always glad to help you compare specifications and plan your space.

This article is for general information only and is not medical advice. Please consult your physician about your individual suitability, especially if you have a medical condition, are pregnant, or take medication that increases light sensitivity.