We are shenzhen dalos electonics co., limited, and our main products are HID conversion kits and other car accessories products. We have been working in the field for over 8 years, and now we are a leading supplier in the line.Our quality management systems are ISO9001:2000 certified. Over 20 QC technicians check our products piece by piece throughout production, and before package, we testing the ballast and lamp for 5000 time strike a light. At present, our main product market are Janpan, One years ago, one Janpanese customer buy 10000pcs from us, there are only 10pcs replaced. We are trust our products quality. If our products do not work by itself reason within one year, we will replace it free charge, and we will bear the freight. Maybe, what i said proved nothing, If you do not believe what i said, you could buy one sample for testing first.