The light worked for one day and then I could never get it to light up again.  Our bathroom remodel took longer than expected and I could not return it because it was outside the 30 day return period.  This mirror is a typical product made in China.  The arm didn't seem very strong when extending it because the hinges were so tight.  I'll have to throw this one away and order another - but it won't be this make and model.  Don't waste your money.