Campus111 via eBay offers this HID 55-watt Xenon Headlight Conversion Kit with prices starting from $18 with free shipping. That's tied with our December mention and the lowest total price we could find by $2. It includes two bulbs, two ballasts, and necessary wires for installation. It's available in select sizes from H1 to H15 and from 880 to 9004/9007 and bulb colors from 3,000K to 12,000K.