1. Is your headlight Plug & Play? A: Yes,it is plug & play. 2. What is warranty time? A: 18 Months. 3. How to do if the LED headlight go bad? A: You show us photo, after we confirm, we will ask your side to send video, so we can apply replacement and arrange delivery with your next order. 4.What is the advantage of YUFING products? 1). Unique product design,private mould . 2).Good brightness and stability.High quality with competitive price. 3). 100% products under 48hrs aging test before delivery.The defect rate is less than one in 1,000. 4). ISO9001:2005 approved factory. 5).Strong R & D and design capabilities. 5.What is the Minimum order quantity? MOQ: 5 sets.We accept sample order and trial order.If your quantity is large,you could get a little competitive price. 6. What is the Warranty? We warranty the products for 12months to 18months based on different products. 7. How to place an order ? 1). Tell us the model and quantity, consignee information, shipping way and payment terms. 2). We make an invoice for you. 3). Complete payment after confirmed the PI. 4). Confirm payment and arrange production. 5). Ship goods to you. 6). Send you the tracking number or B/L(by sea). 7). Goods delivered.