My experience with evaluating consumer medical devices ("lifestyle" and "fitness") is that what is on the box is often not what the device actually does. Beside

My experience with evaluating consumer medical devices ("lifestyle" and "fitness") is that what is on the box is often not what the device actually does. Besides wavelength and wattage, you would probably need to check for consistency, whether there aren't any spikes, etc. I don't know how much IR light is dangerous for the brain / what tolerances are acceptable.