1.Q:Are you a factory or trading company? A:We are a factory. 2.Q:Where is your factory located? How can I visit there? A:Our factory is located in Yangzhou City, Jiangsu Province, China, about 2 hours drive from Shanghai. All our clients, from home or abroad, are warmly welcome to visit us! 3.Q:How can I get some samples? A: We are honored to offer you samples. 4.Q:How does your factory do regarding quality control? A:100% of the lamps will be tested and keep lighting for 24-72 hours to test its quality reliability , and we will also test its temperature after 24 hours' lighting. Then after it is cool we again test 100% of the lamps to see if it still work well . Each lamp should pass all these QC procedures before shipping to customer.