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0.2% Defective rate 9004, 3000k to 12,000K or above, 3000 housrs ---------------------------------------------------------------------------------------------------------------------------------------- Dear customers:Factory price, Service foremost!We achieve our promise all the time and our company has grown tremendously since in inception in 2002.Who is RAMBO?Guangzhou Rambo Technology Co.,Ltd. (Rambo Electronics) is one of the earliest companies engaged in car driving security systems including HID xenon kits and TPMS. We have customers from more than 50 countries and regions. We are now export HID xenon kits of 90,000 pieces every month.How do I know your products have good quality?1. Well trained system Every staff must accept 60 days of training courses and have to pass qualified examination before starting work.2. Higher warranty standards Low defective rate and long warranty time. We promise defective rate will under 1% for ballast and 0.2% for xenon bulb. While other companies provide 12 to 16 months warranty. Our company offers over 18 to 24 months warranty.3. International ISO 9001:2000 quality management system We are an ISO 9001:2000 certified company. Our products get CE, ISO90001:2000, DOT, E-ARK, RoHS, and TUV certifications. All the products have got professional and authoritative quality certifications.4. Strictly quality test Every product before shipment will have more than 10 tests, including Luminosity test, drop test, waterproof / dust test, shock test, lifespan test, performance test, efficiency test, high/low temperature test, salt spray test, and aging test. The entire tests make sure our products have very low defective rate.5. Strong research and develop ability We dare say no HID xenon companies in China can change and improve rapidly than us. We have improved quality more than 200 times during these 7 years' effort. We improve product quality almost 2.3 times every month. Our strong research and develop ability makes our quality improve quickly and price down at the same time.6. Good running after sales service We were, we are and we will always practicing the tenet of "clients first, quality first". All customers' complain will get satisfactory solution within 24 hours.Our very low product defective rate helps us get rid of "quality gate" problem. We believe a good running service system can bring both of us a long-term and stable business relationship. What we need is long-term profit and win-win situation.Thanks for your support.We are always here focus on being the best. Yours sincerely, Yifan President/Owner