Review on XtremeVision AC 55W HID Xenon Premium Slim Ballast - Get A Pair Of 2 PCS Now! by Anthony Colton

These seem to be quality HID ballast. Love the slim design which makes them easier to mount in the hood. I detect no bulb flickering with these unlike the cheaper 35W DC ballasts they replaced. Lights also appear brighter and warmer.I noticed only 2 issues though. The first is that not all the holes for the mounting bracket fit. Another is I had to drill out one of the mounting holes so the screw would go through.Other than those two minor issues, these ballast seem like they will last for a long while. If anything goes wrong, luckily they come with a 2yr warranty.Work great with 5000K innovited HIDs.