1.You are factory or trading company? We are a factory in ShenZhen China, do LED business since 2007, more than 16 years LED Lighting manufacturer and export experience. 2. How about the delivery date? Sample 2~4day, normal order 7~10days, bulk order 15~20days. 3. Can SE.Lighting offer OEM or ODM? Yes, we can offer flexible solution, OEM and ODM available, just send us your needs, our professional team will help you to provide whole solution. 4. Can SE.Lighting provide DIALUX support? Yes, we have the Everfine Goniophotometer ourself, if you send us the project drawing, our engineer can provide the DIALUX solution for you. 5. How is the warranty policy? We have 3 years or 5 years warranty for different products, during the warranty period, if confirm the quality product problem, we’ll response it and provide free replacement. Meanwhile we hope you can provide us neccessory photo, video or send back reject to analyse the reason. 6. How can I buy your product, contact you. You can contact our sales team freely, details you can visit our sebsite //www.se.lighting/ for details, our team will reply you within 12 hours.