For such an expensive mirror, I really wanted better functionality. After the mirror turns on for about 5 seconds, it dims if I don't move. I have to wave my hand in front of the sensor over and over again while using, which is really annoying. I have experimented with a few different distances while using the mirror and it happens every time. The light level is great and so is the magnification, but the light dimming issue really takes away from my enjoyment and practical use of this product.