Q1: What certificate you have? we have CE Rohs reach for EU market, ETL for North American market. And we will be glad to meet your request to pass other certificates. Q2: What's material you are using for the motor? we are using 100% copper for AC and DC motor. Q3: How about the LED? The Led light which we are using all have CE, CB or ETL certificate, 3 CCT, also have selction for memory and dimmer. Q4: What's kind of packing for your products? we are using 5 ply strong export carton, inside have 2 ply polyform. our packing can pass drop test. Q5: How about your MOQ? Normal MOQ is 50pcs. Q6: How about your delivery time? The delivery time for RTS models only take 10 days. OEM order take 30~35 days. Q7: About retail one-piece distribution and distribution, what is the process? A: We have a warehouse on USA, just place order from us, We will deliver the goods within 2 working days. Q8: How about your warranty for the products and how about your after-sale service? Free after-sale service. We provide 15 years warranty for motor, LED and remote control have 2 years, if you have any quality problem, just send us the picture and video, we can send you spare parts for free.