we can sell it for one set .HiD ballasts ,HID Xenon bulbs for one set. Highly quality is the principle of our company.
Details of our mini slim ballasts as follow:
1.Input voltage:9-16V
2.Nomar volgage:12V
3.Output power:35W 55W Nomal power:35W
4.Defective rate :1%
5.Size of product:84*63.5*13mm
They are easy to carry,because of the mini component.
In order to get more info,pls contact us at any moment