Advantages: Professional chips,high quantity,reasonable price good service. High efficiency,energy saving,environmental protection. All the color are available. DC 12V or 24V.also can be made in 6V or 24V. easy to install Long Life span.One can be used 2 or 3 years or more. OEM and ODM are welcome. car led headlight h1 car led headlight h1 car led headlight h1 Please contact me: tell me voltage, puantity