I bought this lighted medicine cabinet barely 2 years ago.  The LED lights are no longer working.  What a terrible, poorly designed, low quality product.  I recently renovated two bathrooms and except for some bathroom fixtures, I bought predominantly Kohler branded products.   I am extremely disappointed with the Kohler products so far.   This lighted medicine cabinet is just one example of how the quality of Kohler products has become so bad.  I am doing more home renovations and I will most certainly not choose Kohler again.