Very bright!!!! It hurts my eyes, even after closing it.
The shipping was extremely prompt. However, it is very bright even with the eye guard. I tried it with goggles, but it is still bright. I have to to figure out how to block the brightness (maybe with a sleeping mask)  before I can come back and comment on the effectiveness of this item. I would say take that into consideration before purchasing as that may be an issue for many. Potentially it could be due to the number of LED in this mask. Maybe I should have gone for the first version with half of the LEDs.
Rating: 2 stars