I purchased 50 HID Hi/Lo slim Line kits from this company w/Invoice matching the company. When I received the units they had a high ballast failure rate. I called and Gpusi said that the sales person shipped another companies product & was not theirs. The same sales person is still working @ Gpusi & Gpusi will not honor replacing the bad ballasts. This company sells products with very high failure rates and will not warranty their HID product. Do not buy from these rip-offs http://www.gpusi.com/frame.php?loadpage=about_us.php $2, 500 of crap I can not sell