Q1. What about the lead time? A: Sample needs 7-10 days, mass production time needs 20-25 days Q2. Can I have a sample order for led light? A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. Q3. What about Payment? A: 30 % TT in advance, 70% TT before delivery. Sample payment term:100%TT in advance. Q4. How to proceed an order for led light? A: Firstly let us know your requirements or application. Secondly we quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places deposit for formal order. Fourthly we arrange the production. Q5. How do you ship the goods and how long does it take to arrive? A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. Q6.What about your quality control system?What testing equipment do you have? A: Factory QC department make 100% inspection before delivery.Our testing center can make structure test, electronic test, material test and optics test.