55W AC Slim Digital HID Xenon Replacement Ballast For H11 H7 H8 H9 H4 H1 H13 9005 9006 9007 Universal Fit

First some things you should know about xenon kits. Go ahead and buy a relay kit or build your own with a 12V automotive relay. Less chance of issues with undersized wiring preventing a bulb from coming on.Next, having a really good ground is important.Match the bulb wattage to the ballast. Different wattage ballasts and bulbs are compatible but there is a caveat. The light color of the bulbs that you buy are based on the wattage ballast providing the power. For example a 4000K 55W bulb will not be 4000K at 35W.There are DC ballasts and AC ballasts. Make sure your bulbs are compatible with the ballast type you buy. Whether you buy this kit or another, look for flicker free.You may need a canbus add on for some newer vehicles. Do a little research and see. Do you want your instrument panel telling you your headlights are burned out even when they aren't?Ok, now the review.I have purchased and installed many xenon headlight kits. I haven't found a brand yet that consistently has good ballasts. Expect issues with them. The key is having good customer service so that when you do get a dud, they replace the defective component.I bought two of these ballasts and one of them was bad. I contacted the seller and told them what troubleshooting I had done. They immediately replied that they were shipping a replacement ballast and the next day sent a tracking number. The seller is the manufacturer brand name so it's quite relevant with this brand.These ballasts have a much faster bulb warm up than most. The light gets to full brightness within a couple seconds. The ballasts are smaller and fit more easily than the other brand I usually buy. The kit comes with strong double face tape for mounting. The wiring harnesses and case feels sturdy and well made. So far I am quite happy with them. I will update if anything changes.

Purchased to replace hid balast that wouldn't turn on occasionally. Going on 4 months now and haven't had any issues with this product and light turns on right away.

Haven’t had issues with these. They light up the HID bulbs pretty quickly and brighter than a 35W ballast.

Is been 4 years and still working like that first day loved

will malfunction after a couple of months and your headlights will not work.

Only thing I disliked was it said next day delivery which ended up taking 3 days to deliver.

I previously purchased a less expensive all-in-one igniter and ballast and had very low light output. After installing this on the drivers side the illumination is night and day difference. I will definitely install this on the passenger side headlight and buy a spare for my more adventurous rides into the outback.

Working so far. but had to bend the pins to get it to work with H11.