Have seen the lights online. Finally saw some on a machine at a shop I was visiting. It was very bright, I think she had the 6 lights. They came in 3, 6, 9 lights, size depending on what size harp you have. The only thing I noticed is that the lights only lighted up what was directly under the harp and bit of shadow on the left side of needle. I did not sit down at the machine, so I can not say whether that made a difference or not. But it did put out a lot of light! And the lady who owned the machine was very happy with them.