To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I bought this product and used it the first day I received it, however before I could finish with my left hand the lamp stopped working. I figured maybe it overheated but no it literally just stopped working. The button lights are just constantly blinking as if there is a short maybe. I am very disappointment in this product. I am now walking around with my left nails painted and my right not. Ridiculous!