Red Light Therapy - Choosing a device
Panels, masks and beds compared
How the common form factors - panels, masks and full-body beds - differ in coverage and delivery, described neutrally.
Red light devices come in several physical formats, and the format shapes how light is delivered far more than the marketing implies. Understanding the trade-offs helps you interpret claims; it is not a suggestion that any format is worthwhile for a given purpose.
Panels
Panels are flat arrays of light-emitting sources, typically used at a distance. Because intensity falls off with distance, the delivered dose depends heavily on how far away you sit and for how long - so a panel's headline power figure alone tells you little without the distance it was measured at.
Masks and small targeted devices
Masks and handheld or wearable devices sit close to a small area of skin. Proximity means the light has less distance over which to weaken, but coverage is limited to whatever the device rests against. These are the format most studied in the skin-related research mentioned earlier, though device output still varies widely.
Full-body beds
Bed-style enclosures aim to expose a large surface area at once. The engineering challenge is delivering a consistent, meaningful dose across a whole body rather than just bright light, and specifications here can be especially hard to verify. Larger and more impressive-looking does not guarantee a more controlled dose.
- Coverage area and delivered dose are separate questions - a large device can still deliver an uncertain dose.
- Distance is decisive for panels and beds; proximity defines masks and small devices.
- Across every format, transparent wavelength and output figures matter more than the form itself.
Educational content only. This comparison describes how devices differ and is not medical advice, a safety assessment of any product, or a claim that these devices produce particular health outcomes. Speak with a qualified professional about your individual circumstances.
Sources for this classroom
Educational content only. Not medical advice, diagnosis or treatment. Always consult a qualified healthcare professional before changing your health regimen.
