UV-Free
UV-free means the device is not supposed to emit meaningful ultraviolet light. This matters most in long-session visible-light products like SAD lamps, where safety language should be more than a marketing badge.
Why buyers should care
For white-light products used near the face and eyes, UV-related safety claims should be clear and credible, not vague reassurance.
How brands misuse it
Some brands use UV-free like a trust badge without explaining design, testing, or certification context.