Beam Angle
Beam angle is the width of the light spread coming out of an LED or panel lens. In buyer terms, it changes how concentrated or spread out the treatment area feels at a given distance.
Why buyers should care
A tighter beam can make a panel look stronger at the center, while a wider beam may feel more usable across a larger area. Coverage and comfort change with beam angle.
How brands misuse it
A panel can look impressive on paper if the beam is narrow enough to inflate center readings, even when overall practical coverage is less useful.