Our products uses the latest in light irradiation technology and quality materials,and by CE - cleared efficacy and safety. Unlike the 150 lamp beads of the ordinary led mask, this mask has 192 lamp beads. So it will be heavy than ordinary led mask. Comfort may be reduced. In addition, because this mask adds other masks that do not have unique functions, there will be 7 small conductors inserted into the mask, and the weight will increase again. For a long time, there may be pressure on the face and eyes, resulting in pressure marks. This is not our main feature, but an auxiliary feature. If you mind, please buy carefully.