Love this mirror! My other LED mirror flickered and I was worried this would too. Nope! The dimming settings work well.  If you use the 7x magnified side (great for eyebrows!) make sure you read the instructions that say to sit within 4 inches, otherwise the reflection looks distorted and made me dizzy. Now I know why I was dizzy looking at the mirrors in the store.   I was standing too far away!