I purchased a set of laser lights and when I received them, neither worked. They were completely broken in the box. The quality was extremely substandard to any other inexpensive light that you can buy. I emailed them to ask for a refund and they told me that they would get back to me in 1-2 days. They never responded and now I am out the cost of the lights. I do not recommend this company. Quality and customer service is extremely poor.