hid kit 1, High quality 2, Pretty competitive price 3, Fast delivery 4 ... Polarity protection test10,EMC anti-jamming testHID advantage:1,High brightness: three times lumunous flux as that of halogen ... ,Waterproof,dust resistant and anti-vibrationWarranty:1, the kit comes with 15 months warranty from the shipment2, ... working day5, Extended warranty can be negotiated High quality and low price hid kit