I purchased four LED signs for my store at a total price of just under $1000 Out of the four, two are defective. I contacted customer support by email and was given the run around. In the end they told me to return the signs to them and they will send to their warehouse. However, they wanted me to pay for the shipping and reshipping costs. Beware of this organization. They sell defective product and have a well rehearsed response to customer complaints. I would think they get a lot of practice.