Q1. Are you factory?A: Yes,we produce LED lights for more than 10 years,you will be satisfied with the professional services from us.Q2. Can leadtime be more shorter because I am urgent?A:Yes, please contact us urgent to check the details. Q3. I want high quality LED light, can you do?A:Yes, we will provide famous brand high quality LED chips and drivers.Q4. If there are some lights that can not work when i receive the goods?A: Don't worry, we will give you same quantity of good lights for compensation in your next order.Q5. How does your factory do regarding quality control?A: :Quality is priority. Optosun people always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained CE,RoHs, authentication.Q6. Is it OK to print my logo on led light product?A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.Q7: Do you offer guarantee for the products?A: Yes, we offer 1- year warranty to our products.Q8: Where is your factory located? How can I visit there?A: Our factory is located in Zhongshan City, Guangdong Province, China. All our clients, from home or abroad, are warmly welcome to visit us!