Campus111 via eBay offers this HID 4300K 55-watt H1 Xenon Headlight Conversion Kit for $19.99 with free shipping. That's $3 below last week's mention and the lowest total price we've seen. (It's a current low by $6.) It includes two bulbs, two ballasts, and necessary wires for installation. Deal ends February 4 at 11 am ET.